Category Archives: INDONESIA

A 28,000-year mysterious pyramid is discovered at the top of Mount Padang, in west java Indonesia

A 28,000-year mysterious pyramid is discovered at the top of Mount Padang, in west java Indonesia

Indonesian scientists have recently found an ancient pyramid- that is hidden in plain sight for thousands of years – buried inside a mountain in Indonesia.

Located atop Mount Padang in West Java, the structure is topped by an archaeological site that holds rows of ancient stone pillars.

Scientists become the first Europeans to discover Gunung (Mount) Padang in the early 20th century, they must have been awestruck by the sheer scale of their ancient stone surroundings.

Scientists claimed that a pyramid-like hill on top of Mount Padang in West Java isn’t natural – it as made by humans thousands of years ago.

According to scientists, there’s a series of channels and chambers belonging to a 10,000-year-old pyramid buried underneath Gunung Padang in West Java. They believe Gunung Padang’s layers of rocks were man-made and its slopes span at least 150,000 square meters of land.

The exploration proves that the structure does not cover just the top but also wraps around the slopes covering about 15 hectares area at least.

Scientists noted, “The structures are not only superficial but rooted into greater depth.”

Researchers Danny Hilman Natawidjaja told Live Science, “It’s a unique temple. It’s not like the surrounding topography, which is very much eroded. This looks very young. It looked artificial to us.”

Scientists used an array of techniques to peer underground including ground-penetrating radar surveys, X-ray tomography, 2D and 3D imaging, core drilling, and excavations — the researchers gradually uncovered several layers of a sizable structure. It spread over an area of around 15 hectares (150,000 square meters) and had been built up over millennia, with layers representing different periods.

At the very top were pillars of basalt rocks framing step terraces, with other arrangements of rock columns forming walls, paths, and spaces. They estimated this layer to be about 3,000 to 3,500 years old.

Scientists noted, “Underneath the surface, to a depth of about 10 feet (3 m), was the second layer of similar rock columns, thought to be 7,500 to 8,300 years old. And a third layer, extending 49 feet (15 m) below the surface, is more than 9,000 years old; it could even date to 28,000 years ago.”

Fossilized Insect Discovered Not in Amber, But in Opal

Fossilized Insect Discovered Not in Amber, But in Opal

A piece of opal from Java Island, Indonesia,  holds some remarkable cargo: a stunningly preserved insect that may be at least four to seven million years old.

Amber has long been prized for not only its lush, fiery hues but its elaborate contributions to Earth’s fossil record. As Vasika Udurawane writes for Earth Archives, the petrified tree resin starts out as a viscous liquid, slowly hardening over millions of years and preserving the entrapped remains of creatures that find themselves caught up in the process.

Up to now, scientists have collected amber fossils featuring such lively scenes as a spider attacking a wasp, an ant beleaguered by a parasitic mite and even a lizard seemingly suspended in mid-air—or rather mid-amber.

To date, most scientists believe that such high-quality fossil specimens are unique to amber, Gizmodo’s Ryan F. Mandelbaum reports. But an intriguing find by gemologist Brian Berger could upend this notion, proving that the slow-forming gemstone opal is also capable of preserving the remains of ancient animals.

A precious opal discovered on the island of Java in Indonesia includes what appears to be a complete insect encased inside. While insects encased in amber are well-known, a second, much rarer, the process of opalization can also occur while still preserving the insect inclusion, which is believed to be the provenance of this specimen.

Writing in a blog post for Entomology Today, Berger explains that he recently purchased an opal originating from the Indonesian island of Java.

Dotted with a rainbow of colors—from amber-Esque shades of yellow and red to neon green and dark blue—the gemstone is impressive in and of itself. Add in the insect seemingly entombed within, however, and the opal transforms from a precious stone into a significant scientific discovery.

“You can see what appears to be a complete insect encased beautifully inside,” Berger notes. “… The insect appears to have an open mouth and to be very well preserved, with even fibrous structures extending from the appendages.”

According to Gizmodo’s Mandelbaum, it’s possible the bug was trapped in amber that then underwent a process known as opalization. Much like fossilization turns bone into stone, opalization can render organic specimens opals’ hapless prisoners.

Michelle Starr of Science Alert points out that researchers currently have a limited understanding of opal formation. Right now, the dominant theory involves silica-laden water, which flows across sediment and fills cracks and cavities in its path. As the water evaporates, it leaves behind silica deposits, starting a process that repeats until an opal finally forms.

In Indonesia, home of Berger’s specimen, opalization takes on an added twist. Volcanic fluid, rather than simply water, races over the Earth and fills faults. As the fluid cools down, water contained within leaves behind silica deposits, launching the lengthy journey of opal formation.

It’s worth noting, according to Starr, that opalization appears to require a hollow cavity. Amber, however, does not fit these parameters, leaving scientists puzzled over how the opal in question if it indeed started out as amber, came to be.

Ben McHenry, senior collection manager of Earth sciences at the South Australian Museum, tells Starr that the specimen could share similarities with opalized wood, which is a common occurrence in Indonesia.

In an interview with Gizmodo’s Mandelbaum, Ryan McKellar, curator of invertebrate paleontology at the Royal Saskatchewan Museum in Canada, adds that Berger’s opal reminds him of a specimen featuring wood partially embedded in resin.

The section of the wood covered in amber was preserved much like a fossilized insect, but the other side, exposed to the natural environment, transformed into petrified wood.

Moving forward, Berger hopes to recruit an entomologist or paleontologist better equipped to study the unusual opal and its insect resident.

As Science Alert’s Starr notes, the gemologist has already submitted the stone to the Gemological Institute of America, which issued a report authenticating the specimen as “unaltered, untampered precious opal, with a genuine insect inclusion.”

Reflecting on the find’s potential significance in an interview with Starr, Berger concludes, “If the process of formation is correct, from tree sap with an insect through a sedimentary process, to copal, to amber, to opal it could mean the insect has the possibility to be one of the oldest ever discovered.”

Homo erectus’ last known appearance dates to roughly 117,000 years ago

Homo erectus’ last known appearance dates to roughly 117,000 years ago

Homo erectus’ last known appearance dates to roughly 117,000 years ago
A new study finds that the last known appearance of Homo erectus, at Java’s Ngandong site, dates to between 117,000 and 108,000 years ago. A H. Erectus skullcap previously found at the site is shown.

Two million years ago the Homo erectus had evolved and became the first human species to be entirely upright. New evidence suggests it remained there on the Indonesian island of Java just over 100,000 years ago-long after it had disappeared elsewhere.

It means when our own species started living on Earth, it was still around. In the 1930s, 12 Homo erectus skull caps and two lower leg bones were found in a bone bed 20m above the Solo River at Ngandong in central Java.

In subsequent decades, researchers have attempted to date the fossils. But this proved difficult because the surrounding geology is complex and details of the original excavations became confused. In the 1990s, one team came up with unexpectedly young ages of between 53,000 and 27,000 years ago. This raised the distinct possibility that modern humans overlapped with Homo erectus on the Indonesian island.

Prof Russell Ciochon with replicas of the Homo erectus skull caps found at Ngandong

Now, researchers led by Prof Russell Ciochon of the University of Iowa in Iowa City opened up new excavations on the terraces beside the Solo River, reanalyzing the site and its surroundings.

They have provided what they describe as a definitive age for the bone bed of between 117,000 and 108,000 years old. This represents the most recent known record of Homo erectus anywhere in the world.

“I don’t know what you could date at the site to give you more precise dates than what we’ve been able to produce,” Prof Ciochon told LIVE SCIENCE.

Prof Chris Stringer, research leader on human evolution at London’s Natural History Museum, who was not involved with the work, commented: “This is a very comprehensive study of the depositional context of the famous Ngandong Homo erectus partial skulls and shin bones, and the authors build a strong case that these individuals died and were washed into the deposits of the Solo River about 112,000 years ago.

“This age is very young for such primitive-looking Homo erectus fossils, and establishes that the species persisted on Java for well over one million years.”

Researchers think the collection of remains represent a mass death event, possibly the result of a lahar upriver. A lahar – which comes from a Javanese word – is the slurry that can flow down the slope of a volcano when heavy rainfall occurs during or after a volcanic eruption. These violent events will sweep away anything in their path.

Previously, team-member Frank Huffman, from the University of Texas at Austin, had tracked down the descendants of the Dutch researchers who excavated the Homo erectus remains back in the 1930s.

The excavation sites lie along the Solo River in central Java

The relatives were able to provide him with photographs of the original dig, maps, and notebooks. Huffman was able to resolve much of the uncertainty that had hampered previous attempts to understand the site.

“He was able to tell us exactly where to dig,” Prof Ciochon said of the University of Texas researcher. Ciochon and his colleagues excavated part of an untouched reserve area left alone by the Dutch team in the 1930s. Informed by records of the original excavations, the team was able to identify the gravelly deposit – or bone bed – from which the Homo erectus fossils had come, and date it.

On other islands in South-East Asia, Homo erectus appears to have evolved into smaller forms, such as Homo floresiensis – the “Hobbit” – on Flores, and Homo luzonensis in the Philippines. This probably occurred because there were limited food resources on these islands. But on Java, there appears to have been enough food for Erectus to maintain its original body size.

The specimens at Ngandong appear to be between 5ft and 6ft in height – comparable to examples from Africa and elsewhere in Eurasia. The findings further underline the shift in thinking this field of study has undergone over the decades. We used to think of human evolution as a progression, with a straight line leading from apes to us. This is embodied in the so-called March of Progress illustration where a stooping chimp-like creature gradually morphs into Homo sapiens, apparently the apex of evolution.

Excavations at Ngandong in 2010

These days, we know things were far messier. The latest study highlights a mind-boggling truth: that many of the species we thought of as transitional stages in this onward march overlapped with each other, in some cases for hundreds of thousands of years.

But why did Homo erectus survive so late on Java? In Africa, the species was probably gone by 500,000 years ago; in China, it vanished some 400,000 years ago. Russell Ciochon thinks that it was probably outcompeted by other human species elsewhere, but Java’s location allowed it to thrive in isolation. However, the results show the fossils came from a period when environmental conditions on Java were changing. What was once open woodlands were transforming into the rainforest. Prof Ciochon thinks this could mark the exact point of extinction of Homo erectus on the island.

No Homo erectus is found after this time, he explained, and there’s a gap with no human activity at all until Homo sapiens turns up on Java around 39,000 years ago. Prof Ciochon believes H. Erectus was too dependent on the open savannah and too inflexible to adapt to life in a rainforest. “Homo sapiens is the only hominin species that live in a tropical forest,” he explained. “I think it’s mainly because of the cultural attributes of Homo sapiens – the ability to make all these specialized tools.”

“Once this rainforest flora and fauna spread across Java, that’s the end of erectus.”

But Chris Stringer sounded a note of caution.

“The authors claim that this is, therefore, the last known occurrence of the species and that this indicates there was no overlap of the species with Homo sapiens in Java, as H. sapiens arrived much later,” he said.

“I’m not convinced about that as other supposedly late Homo erectus material from Javanese sites like Ngawi and Sambungmacan remain to be properly dated, and they may be younger still. Alternatively, they may correlate with the ages of the Ngandong fossils, but that should be the next stage of an investigation.”

Narrative Cave Art in Indonesia Dated to 44,000 Years Ago

Cave Art in Indonesia Dated to 44,000 Years Ago, and the cave art is the earliest known record of ‘storytelling’, researchers say

The artwork found in a limestone cave in 2017, was dated to nearly 44,000 years ago using uranium-series analysis, which they said in the study published on Wednesday in the journal Nature.

A team of archaeologists and researchers from Indonesia’s National Research Centre for Archaeology and Griffith University, work in Leang Bulu’ Sipong 4 limestone cave in South Sulawesi, Indonesia December 4, 2019. The picture was taken on December 4, 2019.