1,000-Year-Old Buffalo Jump Discovered in Wyoming

For Curt Ogburn and Wade Golden, the journey to the excavation of the Ogburn-Golden Bison Jump near Baggs began almost 30 years ago, when the two high school students first found an old bison skull on state land.

Wade and I were like brothers,” Ogburn said. We found all kinds of stuff out in the desert, and it was our playground. One day in 1991, Ogburn and Golden were out in the hills, doing the thing so many Wyoming teenagers do: scaling rocks, climbing hills, and exploring.

“We were hiking around the Red Desert west of Baggs, and found a buffalo skull,” Golden said. “We thought, ‘Wow, this is cool,’ so we picked it up and took it back to the high school science lab where we gathered around and looked at it… That was it.”

In about 2008, Golden started wondering — could he find that site again?

“As I was hiking in, I started finding artifacts. I found a lot more buffalo skulls and a lot more bones all around,” Golden said. Golden said that after a few attempts to contact the Wyoming State Archaeologist, Spencer Pelton, who took the job in November, agreed to investigate.

“I get a lot of calls, but this one seemed promising,” Pelton said, adding that the two first headed to the site in late June.

“We discovered this was an archaeology site used to kill bison, and it was used between around 1,000-1,500 years ago,” he said. “This particular site is — the best way to put it is that there is no way that bison bone would have ended up where it was without humans having a role in it. These bison bones are perched upon some pretty steep, cliffy areas, and it is not in a place where you would expect an animal to die naturally.”

For what were the earliest users of the bow and arrow, the journey to the area started 1,000-1,500 years ago. This was a millennium before the introduction of the horse to North America, around the time people transitioned from using a spear, or atlatl, to the bow and arrow. Several arrow points directly associated with the bones have also been discovered.

“These are probably some of the first people to use the bow and arrow,” Pelton said. “The site wasn’t so much of a cliff, but a steep embankment where the animals would become increasingly confined near steep, broken terrain. As these bison got more and more confined, it got easier for people to kill them.”

Bison hunting was a very dangerous endeavor, he said.

“To some extent, hunting is still dangerous compared to our day-to-day lives,” Pelton said. “But especially in prehistoric days, chasing these giant animals with stone tools, there is not a lot of room for error in that process.”

Landscape at any given site is unique, but the bones at the Ogburn-Golden Bison Jump were preserved in a mudstone layer of rock.

“The bones became incorporated with the sediments in this area, which have gradually eroded down to where we found them today,” Pelton said. “This place is in a unique setting. I have never actually seen anything like it.”

Slopes are typically not great for preservation because they’re constantly eroding, but in this case, the bedrock mudstone preserved the bones in just the right way, Pelton said. Wyoming likely had its prehistoric population peak around 1,000-1,500 years ago, when people lived in semi-permanent seasonal camps that they would return to on an annual basis. There is evidence that people in the area had a complex, large society with an extensive trade network reaching the Pacific Ocean.

The exact location of the Ogburn-Golden Bison Jump is confidential for the time being, to preserve the opportunity for study.

“It is really important that when we find an archaeology site of some significance that one, there is confidentiality involved,” Pelton said. “We don’t want folks collecting things because that would impact our ability to interpret how the site was used, and two, this site, in particular, doesn’t lend well to public interpretation. It is in a really dangerous spot, so how we handle something like this is we conduct an excavation, write up our findings and establish an exhibit in a local museum.”

For Golden, preservation is first and foremost.

“This is history that should be shared with everyone,” he said. “It is very neat. I knew immediately, once I started finding artifacts, what it was, and the importance of it. Ogburn said that to a 16-, 17-year-old kid, finding the bison skull was a novelty, but it is only now that he can fully appreciate what he and his best friend stumbled on three decades ago.

“We knew what it was, but we didn’t know the extent until the State Archaeologist came to look at the site,” he said. “Wade has always been the geologist, archaeologist type. We grew up together since we were four years old, and I used to tease him that he could get out of a car in the middle of a Walmart parking lot and trip over an arrowhead. He is that kind of guy. He is lucky — but he knows what he is looking for.”

Ogburn’s own son is 10 now and loves Wyoming’s history. That his name will forever be on a bison jump in Carbon County — that is pretty amazing.

“I am just so glad Wade kept up with this. My son is 10, and he loves this kind of thing,” Ogburn said. “It is pretty cool.”

The ancient giants of Nevada and the mystery of lovelock cave

For more than a century, a story has persisted about the skeletons of giants being found in Lovelock Cave in northern Nevada. For many years, human remains were put on display in museums here and elsewhere, but that changed. Most of the bones and skulls that were once considered to be historical artifacts have been returned to tribes for burial.

If oversized bones from the so-called Lovelock giants ever existed, they are no longer available to the public. But their story behind the legend persists. Slicing through the bone-dry Humboldt sink on a long dirt road, it’s hard to imagine that all of it was once underwater.

Remnants of a vast ancient lake can still be seen in the distance. For generations of first Americans, this was a lush paradise of tules, fish, and waterfowl. Humans have climbed the same narrow path up the jagged mountain for more than 4,000 years. That’s how long indigenous peoples lived in and around the Lovelock Cave.

The roof of the cave is coated with soot from countless campfires lit by ancestors of the Paiutes. According to tribal lore, a race of red-headed giants made its last stand in the cave.

Reporter George Knapp: “Among today’s Paiutes, do most say the giants were real?”

Devoy Munk: “All that I’ve talked to say yes. I’ve haven’t heard anybody say no.”

Devoy Munk, a Lovelock historian, has spent all of her 80-plus years in Lovelock. Her family’s home today houses a small museum, jam-packed with artifacts and depictions documenting centuries of native culture and pioneer life.

Munk has earned the trust of Paiute elders who say the stories are true, and that the red-headed interlopers not only killed but ate their ancestors.

“My Indian friends tell me they were cannibals, that they set traps. They dug holes in pathways where they walked, covered them, and then Indians would fall in, and they said the best parts to eat were the thighs,” Munk said.

On Internet sites and alien-themed TV shows, the gruesome legend has blossomed, but it’s hardly new. Versions have been told and retold in magazines, even scholarly journals for more than a century.

Famed Nevadan Sarah Winnemucca first wrote in her acclaimed book that the Paiutes waged a three-year war against a tribe of red-headed cannibals before trapping — then killing — the last of them inside lovelock cave.

Her book doesn’t mention giants, and mainstream archeologists have vigorously rejected the entire story, to the point that the state museum in Winnemucca admonishes visitors at its front entrance that the red-headed giants are a myth.

“There have been skeletons pulled out of the Reid collection,” said Bill Snodgrass. “They found some in there roughly 6’2″. When you think about it, back then, six-foot was a very tall individual.”

Snodgrass is the curator of the Marzen House Museum in Lovelock and thinks there is a reasonable basis for parts of the story. In the early 20th century, guano miners began excavating the Lovelock Cave and uncovered thousands of artifacts along with mummified remains including a few specimens much taller than the typical Paiute of centuries past.

Later scientific excavations found troves of native antiquities along with bones. Some human remains were destroyed. Others went to museums for display. A few, Snodgrass says, were consumed in bizarre initiation rituals. He adds there is evidence — including basketry — of an unknown culture that lived near the cave. Records show some of them had red hair.

“I can’t say who they were, redheads or not. Some say uric acid changes the color of hair, but there was definitely a different people here,” Snodgrass said.

Many, if not most, of the visitors who end up at the Marzen House Museum, have questions about the red-headed cannibals. The locals still enjoy the debate.

Reporter George Knapp: “The two of you disagree but it’s a friendly disagreement?”

“Oh yes. We’ve had this discussion and he hasn’t convinced me and I haven’t convinced him,” Munk said. Whether the red-headed giants ever existed, visits to the two museums are worth the drive. 

Eighteenth-Century Artifacts Uncovered in Michigan

Excavators working at Mackinac State Historic Parks have uncovered a heart-shaped ring, a sleeve button made of glass or crystal, a gunflint, a plain pewter button, a plain brass button, and part of a bone knife handle at the site of a house at Colonial Michilimackinac, a fort first established by French traders and missionaries on Mackinac Island.

Researchers discovered what seems to be an intaglio bottle, or perhaps the quartz, jacket ring, according to Dr. Lynn Evans, curator of archaeology for Mackinac State Historic Parks

“We are not sure who the figure is, but it appears to be a Classical figure, which might have appealed to an educated man of the eighteenth century.

It was found in what we believe to be the second cellar of the house, where we have been finding British-era artifacts.

We have found other intaglios at Michilimackinac, including another one at this house, but the others have all been round and appear to have been busted in the style of the eighteenth century.

An intaglio glass, or possibly crystal, sleeve button (cuff link) was also found during one of the first archaeological digs of the 2020 season at Colonial Michilimackinac. (Mackinac State Historic Parks)

Archaeologists also found a gunflint, a plain pewter button, and part of a bone handle from a knife in the root cellar in House E of the Southeast Rowhouse.

Along with the findings, two horizontal planks, perhaps the floor, are starting to be exposed, said Evans.

A plain brass button and an intact heart-shaped trade ring have also been exposed in the same area.

The archaeological dig at Michilimackinac began in 1959, making it one of the longest-running archaeology programs in North America. House E was first occupied by Charles Henri Desjardins de Rupallay de Gonneville, and later by an as-yet-unidentified English trader.

New Plant Identified in 1,400-Year-Old Pipe in Washington

Rhus glabra, a herb commonly known as smooth sumac, was smoked by people in the Washington State more than 1.400 years ago.

The finding was made by a team of researchers from the State University of Washington is the first time scientists in an archeological pipe have detected the remains of a non-tobacco plant. Who would have thought tobacco-free alternatives would have been so popular all those years ago? This discovery is pretty remarkable.

The Native American pipe, unearthed in Central Washington, also contained residues N. quadrivalvis, a tobacco species currently not cultivated in the area but which is believed to have been widely grown in the past. Until now, Ancient people in the American Northwest had only thought about using special smoking herb mixtures.

“Smoking often played a religious or ceremonial role for Native American tribes and our research shows these specific plants were important to these communities in the past,” said Korey Brownstein, a former WSU Ph.D. student now at the University of Chicago and lead author of a study on the research in the journal Frontiers in Molecular Biosciences. “We think the Rhus glabra may have been mixed with tobacco for its medicinal qualities and to improve the flavor of smoke.”

The discovery was made possible by a new metabolomics-based analysis method that can detect thousands of plant compounds or metabolites in residue collected from pipes, bowls, and other archeological artifacts. The compounds can then be used to identify which plants were smoked or consumed.

“Not only does it tell you, yes, you found the plant you’re interested in, but it also can tell you what else was being smoked,” said David Gang, a professor in WSU’s Institute of Biological Chemistry and a co-author of the study. “It wouldn’t be hyperbole to say that this technology represents a new frontier in archaeo-chemistry.”

Previously, the identification of ancient plant residues relied on the detection of a limited number of biomarkers, such as nicotine, anabasine, cotinine, and caffeine. Gang said the issue with this approach is while the presence of a biomarker like nicotine shows tobacco was smoked it doesn’t distinguish which species it was.

“Also, if you are only looking for a few specific biomarkers, you aren’t going to be able to tell what else was consumed in the artifact,” Gang said.

In addition to identifying the first non-tobacco plant smoked in an archaeological pipe, the WSU researchers’ work also helps elucidate the complex evolution of tobacco trade in the American Northwest.

Analysis of a second pipe that was used by people living in Central Washington after Euro-American contact revealed the presence of a different tobacco species, N. Rustica, which was grown by native peoples on the east coast of what is now the United States.

“Our findings show Native American communities interacted widely with one another within and between ecological regions, including the trade of tobacco seeds and materials,” said Shannon Tushingham, an assistant professor of anthropology at WSU and co-author of the study.

“The research also casts doubt on the commonly held view that trade tobacco grown by Europeans overtook the use of natively-grown smoke plants after Euro-American contact.”

Moving forward, the WSU researchers’ work could ultimately help scientists studying ancient societies in the Americas and elsewhere around the globe identify which plant species ancient people were consuming, providing important information about the evolution of drug use and similar plant-human dynamics.

Closer to home, the WSU team is also putting their work to use helping confirm connections between ancient plant management practices from before the arrival of Western settlers with cultural traditions of modern indigenous communities such as the Nez Perce.

The researchers shared their work with members of the tribe who also used some of the seeds from the study to grow some of the pre-contact tobacco.

The smoking of tobacco is a sacred tradition for Native American groups including the Nez Perce, Colville, and other northwest Tribes and before now it was impossible to tell which kind of tobacco their ancestors smoked.

“We took over an entire greenhouse to grow these plants and collected millions of seeds so that the Nez Perce people could reintroduce these native plants back onto their land,” Brownstein said.

“I think these kinds of projects are so important because they help build trust between us and tribal communities and show that we can work together to make discoveries.”

Scientists In Kansas Discover 91-Million Year Old Fossil Of A Shark That Had Cannibal Babies

A newly discovered Cretodus Houghtonorum fossil shark aged 91 million years old in the Kansas region is part of the list of large dinosaur-era animals.

Cretodus houghtonorum was a spectacular, almost 7 feet long shark, or slightly more than 5 meters long, preserved in sediment deposited in an ancient ocean called the West’s Inland Waterway which covers North America during the Late Cretaceous period (144 million to66 million years ago), based on a study published in the Journal of Vertebrate paleontology.

In 2010, researchers Kenshu Shimada and Michael Everhart and 2 people of central Kansas, Fred Smith and Gail Pearson, found and excavated the fossil shark on the ranch near Tipton, Kansas.

Shimada is a professor of paleobiology at DePaul University in Chicago. He and Everhart are both adjunct research associates at the Sternberg Museum of Natural History, Fort Hays State University in Hays, Kansas.

The species name houghtonorum is in honor of Keith and Deborah Houghton, the landowners who donated the specimen to the museum for science. Although a largely disarticulated and incomplete skeleton, it represents the best Cretodus specimen discovered in North America, according to Shimada.

The discovery consists of 134 teeth, 61 vertebrae, 23 placoid scales and fragments of calcified cartilage, which when analyzed by scientists provided a vast amount of biological information about the extinct shark.

Besides its estimated large body size, anatomical data suggested that it was a rather sluggish shark, belonged to a shark group called Lamniformes that includes modern-day great white and sand tiger sharks as distant cousins, and had a rather distinct tooth pattern for a lamniform shark.

“Much of what we know about extinct sharks is based on isolated teeth, but an associated specimen representing a single shark individual like the one we describe provides a wealth of anatomical information that in turn offers better insights into its ecology,” said Shimada, the lead author on the study.

“As important ecological components in marine ecosystems, understanding about sharks in the past and present is critical to evaluate the roles they have played in their environments and biodiversity through time, and more importantly how they may affect the future marine ecosystem if they become extinct,” he said.

During the excavation, Shimada and Everhart believed they had a specimen of Cretodus crassidens, a species originally described from England and subsequently reported commonly from North America.

However, not even a single tooth matched the tooth shape of the original Cretodus crassidens specimen or any other known species of Cretodus, Shimada said.

“That’s when we realized that almost all the teeth from North America previously reported as Cretodus crassidens belong to a different species new to science,” he noted.

The growth model of the shark calibrated from observed vertebral growth rings indicates that the shark could have theoretically reached up to about 22 feet (about 6.8 meters).

“What is more exciting is its inferred large size at birth, almost 4 feet or 1.2 meters in length, suggesting that the cannibalistic behavior for nurturing embryos commonly observed within the uteri of modern female lamniforms must have already evolved by the late Cretaceous period,” Shimada added.

Furthermore, the Cretodus houghtonorum fossil intriguingly co-occurred with isolated teeth of another shark, Squalicorax, as well as with fragments of two fin spines of a yet another shark, a hybodont shark.

“Circumstantially, we think the shark possibly fed on the much smaller hybodont and was in turn scavenged by Squalicorax after its death,” said Everhart.

Discoveries like this would not be possible without the cooperation and generosity of local landowners, and the local knowledge and enthusiasm of amateur fossil collectors, according to the authors.

“We believe that continued cooperation between paleontologists and those who are most familiar with the land is essential to improving our understanding of the geologic history of Kansas and Earth as a whole,” said Everhart.

The new study, “A new large Late Cretaceous lamniform shark from North America with comments on the taxonomy, paleoecology, and evolution of the genus Cretodus,” will appear in the forthcoming issue of the Journal of Vertebrate Paleontology.

Treasure worth over $1 million found in the Rocky Mountains after a 10-year search

10-year treasure search is over. Forrest Fenn, a former military pilot, art collector and author who claims to have hidden a treasure chest worth more than 1 million dollars somewhere in the Rocky Mountains in 2010 – attracting worldwide adventure-looking adventurers – finally found the treasuries this weekend in a blog post.

The treasure was found under a canopy of stars in the lush, forested vegetation of the Rocky Mountains, and had not moved from the spot where I hid it more than 10 years ago,”

Fenn wrote Saturday on a blog that explaining to people who were looking for it the end of the treasure hunt: “I do not know who was there but the poem from my book led him to the exact spot,” he wrote.

Fenn confirmed the news to the Santa Fe New Mexican, saying the person who found the treasure chest provided a photograph as evidence of its discovery. Fenn would not confirm where the treasure was found or the identity of the person who found it, only saying the individual was “from back East.”

The discovery puts an end to a quest that Fenn himself has said drew as many as 350,000 people to the Rocky Mountains region in search of the hidden treasure.

The bronze chest was filled with gold coins and rare artifacts with Fenn coming back over the years to add to its bounty. Clues to the treasure’s location were included in a poem in Fenn’s self-published memoir, The Thrill of the Chase, also published in 2010.

Throughout the years, Fenn has narrowed down the search area to the geographical region of the Rocky Mountains and within the states of New Mexico, Colorado, Wyoming, and Montana.

In previous interviews, Fenn said he buried the treasure as a way to give people hope—something he was compelled to do after surviving a terminal cancer diagnosis in 1988.

But the treasure hunt has been controversial, and even dangerous, from the start.

Some say the treasure hunt was a hoax, and the Santa Fe New Mexican reported that five people died while in pursuit of it, though Motherboard has been unable to independently verify those deaths.

In 2017 the New Mexico state police chief asked Fenn to call off the treasure search out of concern for the safety of those seeking it. And a woman who said she solved Fenn’s puzzle claimed that she was “hacked” and that another person stole it out from under her and plans to take legal action. Fenn, for his part, has thus far declined to provide a photograph of the solve.

Dal Neitzel runs a blog popular with those searching for the treasure—the same blog on which Fenn announced Saturday the treasure had been found. Neitzel made his first trip in search of the treasure after hearing about it from a note on Fenn’s website in 2010 and said he has made at least 80 trips in search of the treasure since. He said he had mixed feelings about the news that the treasure had been found.

“Disappointment that it was not me who found it and relief that I can stop being a professional blogger,” Neitzel told Motherboard in an email.

Neitzel said what is now important is that Fenn discloses where the treasure was hidden, for the sake of all the treasure seekers who spent years trying to find it.

“We each want to know how close we actually got,” Neitzel said. “Whether our ideas were solid or crazy.’

Though Neitzel never found the treasure, he doesn’t regret the time he spent looking for it and said he will continue making trips out to the area where it was hidden.

“The beauty of the mountains will be my stated goal from this point forward, rather than the chest,” Neitzel said.

25 Million Old Moqui marbles naturally occurring iron oxide concretions that arise from Navajo sandstone

Walkers wandering through the sandy canyons of Utah sometimes come across a strange sight. Where the Navajo Sandstone loses its iconic peach, orange, and red stripes, hundreds of round, iron-coated stones often litter the ground.

Sandstone balls are cemented with a strong layer of iron oxide minerals. Moqui marbles, the colored stones spread over the Utah and Arizona, are often called as a stone, and they fall off pale, cream-colored Navajo Sandstone beds when wind and water wash away the softer rock are often known by the name Moqui.

For decades, the rocks were simply a geological oddity. Then, look-alikes were discovered on Mars (the so-called Martian blueberries). The milestone — among the early evidence for water on Mars — boosted interest in Earth’s iron baubles. 

Now, a new study reveals that the Moqui marbles are no more than 25 million years old — a sharp contrast to the 190-million-year-old Navajo Sandstone. Marbles scattered on sandstone slopes in Grand Staircase-Escalante National Monument are only 2 million to 5 million years old. And on Arizona’s Paria Plateau, the marbles’ iron oxide rind is as young as 300,000 years old, researchers report in the September 2014 issue of the Geological Society of America Bulletin.

“They really represent a record of how water moved the rock millions of years ago, and the next generation can use them to understand water and life on other planets,” said Marjorie Chan, co-author of the new study and a geologist at the University of Utah in Salt Lake City.

Odd balls

The moqui marbles’ precise ages come from a radioactive clock. The iron oxide minerals contain traces of radioactive uranium and thorium, and these decay by expelling helium. Tallying the elements reveals the time since the minerals formed. The innovative technique may help resolve different models of how the stone spheres formed. Scientists agree that the iron comes from the bone-white Navajo Sandstone layers, stripped bare of their mineral paint by percolating groundwater. A subtle film of hematite, or iron oxide, colors the iconic red cliffs and canyons.

Chemical reactions fused the moqui marbles with iron, but the details haven’t been settled. Some researchers now think tiny microbes spurred the chemical process, and that similar concretions on Mars may one day reveal signs of ancient life.

“The discoveries on Mars helped push us to better understand the setting here on Earth, and what we do on Earth feeds back into helping interpret Mars,” Chan told fox news.

Concretions of all shapes and sizes are found all over the world. The curious rocks have inspired fantastical tales of fairies, meteorites and dinosaur eggs, but their origin is fairly mundane. Water flowing through sedimentary rock leaves behind minerals that glue together masses of sand, mud, or other particles. Sometimes, a treasure — like a bone or a shell — hides inside.

The Moqui marbles crop up in the Navajo Sandstone in Arizona and in Utah’s public lands, eroding from the spectacular white cliffs in Zion National Park and the Grand Staircase-Escalante National Monument. Collecting concretions in the parks is prohibited.

The iron stones appear almost black, with a pitted surface polished by blowing sand. Other rusty structures formed too, including discs, “flying saucers,” pipes and flat plates. Spiritualists have endowed the marbles with “energy” and dubbed the distinctive shapes as male and female, making them among the only rocks with a gender. Quietly sitting and holding one in each hand is said to calm the spirit, just like meditation.

“I don’t believe that,” Chan said. “I do believe these are important resources, and the geologic landscape is our heritage.”

Cloaked in iron

The Navajo Sandstone was once the biggest expanse of dunes on Earth. Its color comes from flakes of iron-rich minerals blown in and buried with the quartz sand. After the dunes were blanketed and buried by younger geologic layers, the iron enrobed the sand grains, giving the Navajo Sandstone its amazing colors and patterns.

Eons later, the moqui marbles were born. The concretions owe their existence to massive tectonic shifts in the Southwest, researchers think. Some 20 million years ago, the Colorado Plateau started to bob up like a cork. The entire plateau has lifted about 1.2 miles (2 kilometers).

The tectonic uplift warped its rock layers, trapping oil and gas. When a mixture of water and natural gas flowed through the Navajo Sandstone, it stripped away the rusty coating, bleaching the rocks from red to creamy white. Chan thinks this iron-rich water crept through the sandstone until it reached a crack, hole, or layer where the water chemistry was different and iron settled out of the water.

The chemical reactions first covered each sand grain with iron, creating tiny spheres. The spheres grew, layer by layer, making contact with others nearby until some spheres connect into one large mass. Collectors on private property sometimes find odd, knobby clumps that appear to be partially formed spheres, where the process may have halted halfway through.

“These round concretions have a self-organizing pattern, like people at a party,” Chan said. “The natural pattern is for people to gather together in conversation groups, and the groups are going to be round.”

The results of the new study suggest that the first iron-oxide batch formed 20 million to 25 million years ago, and the next set was added 2 million to 3 million years ago. This younger group matches up with another major event: It’s when the Colorado River started cutting through the Navajo Sandstone near the mouth of the Escalante River, which likely changed groundwater flow through the region. These younger marbles are mostly goethite instead of hematite, which may reflect the changing chemistry of the groundwater.

Iron eaters

The younger ages also support a different model for how the concretions formed, according to David Loope, a geologist at the University of Nebraska-Lincoln, who was not involved in the study. Loope thinks the Moqui marbles were transformed by microbes, morphing from one kind of mineral to another as the region’s groundwater chemistry changed.

According to Loope’s model, the marbles were originally siderite, an iron carbonate mineral. The same fluids Chan said had bleached the sandstone deposited the carbonate spheres, only with an added boost of carbon dioxide gas dissolved in the water. When the Colorado River sliced into the Navajo Sandstone 2 million years ago, the groundwater flow and the mineral levels shifted.

The researchers think bacteria helped convert the siderite into hematite. With a powerful microscope, the researchers also discovered tiny structures suggestive of microbial life inside the concretions, similar to tubes seen in Martian meteorites. Some of the hematite rinds resemble siderite crystals — a clue that one mineral ousted the other, Loope, and his colleagues reported in August 2012 in the journal Geology. “We are completely convinced the concretions had siderite precursors,” Loope said.

Link to the past

“Moqui” is a Hopi word that means “dear departed ones.” According to Hopi tradition, spirits of the dead would play with the marbles at night, leaving them behind in the morning to reassure the living that they were happy in the afterlife.

Just as the Moqui marbles embody the Hopi idea of life after death, the iron stones are links to ancient environments on the Colorado Plateau. With the new dating technique, Chan has shown that scientists can start to pinpoint where and when water flowed through rock. The search for historic water routes in the Southwest has engaged researchers for more than century, since the first geologists tried to puzzle out how the Colorado River carved the Grand Canyon.

“A lot of people are just fascinated by these concretions, and maybe geologists haven’t been able to take them seriously in the past,” Loope told Fox News. “I think they pretty clearly hold a lot of information.”

A New Unified Model For Cave Pearls: Insights from Cave Pearls in Carlsbad Cavern, New Mexico, U.S.A.

The Cave of Lechuguilla is the deepest of the Americas, but it is most notable because of its unique shapes, its peculiar geology, and its impermanence.

Agave lechuguilla, a plant species found near his entrance, is called the cavern. Lechuguilla is located in the National Park of Carlsbad Caverns, New Mexico.

Entry to the cave is limited to licensed scientists, survey and excavation teams, and management trips for the national park service.

Lechuguilla Cave offers more than extreme size. It holds a variety of rare speleothems, including lemon-yellow sulfur deposits, 20 feet (6.1 m) gypsum chandeliers, 20 feet (6.1 m) gypsum hairs and beards, 15 feet (4.6 m) soda straws, hydromagnesite balloons, cave pearls, subaqueous helictites, rusticles, U-loops and J-loops.

Lechuguilla Cave surpasses its nearby sister, Carlsbad Caverns, in size, depth, and variety of speleothems, though no room has been discovered yet in Lechuguilla Cave that is larger than Carlsbad’s Big Room.

Scientific exploration has been conducted. For the first time, a Guadalupe Mountains cave extends deep enough that scientists may study five separate geologic formations from the inside.

The profusion of gypsum and sulfur lends support to speleogenesis by sulfuric acid dissolution.

The sulfuric acid is believed to be derived from hydrogen sulfide that migrated from nearby oil deposits.

Therefore this cavern formed from the bottom up, in contrast to the normal top-down carbonic acid dissolution mechanism of cave formation.

Rare, chemolithoautotrophic bacteria are believed to occur in the cave. These bacteria feed on the sulfur, iron, and manganese minerals and may assist in enlarging the cave and determining the shapes of unusual speleothems.

The claim in the BBC documentary series Planet Earth that these bacteria do not derive any energy from the sun is incorrect, as the majority are sulfur-oxidizing bacteria that utilize primarily atmospheric oxygen (derived from sunlight-driven photosynthesis) as an electron acceptor.

Other studies indicate that some microbes may have medicinal qualities that are beneficial to humans.

Lechuguilla Cave lies beneath a park wilderness area. The cave’s passages may extend out of the park into adjacent Bureau of Land Management (BLM) land.

A major threat to the cave is proposed gas and oil drilling on BLM land. Any leakage of gas or fluids into the cave’s passages could kill cave life or cause explosions.

Cave pearl

Small, almost spherical concretion of calcite that is formed in a pool of water in a cave and is not attached to the surface on which it forms. Occasionally saturated water drips into small pools with such vigour that a stalagmite cannot form.

A bit of foreign matter may become coated with calcite, and slight movements of the water may keep the bit in motion while new layers of calcite are added. Concentric layers are added and polished in this way until the cave pearl becomes too large to remain in motion and becomes attached.