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Rss Directory > Misc > Science & Education > Archeology Blog From Networlddirectory


Archeology Blog From Networlddirectory
Archeology blog from networlddirectory, the place for information.
 
  Fri, 19 Mar 2010 17:54:09 +0100
For decades, researchers have accumulated ever-larger datasets that suggest an enormous space rock crashed into the ocean off the Yucatan Peninsula more than 65 million years ago, resulting in the Cretaceous-Paleogene (K-Pg) extinction. Recent research, supported in part by the National Science Foundation (NSF), suggested that the impact could have occurred 300,000 years previous to the K-Pg extinction, and that another cause--perhaps a second impact, or the long-lasting volcanic activity at the Deccan Traps in what is now India--drove numerous plant and animal species to their end........
  Fri, 19 Mar 2010 17:54:09 +0100
Decaying corpses are usually the domain of forensic scientists, but palaeontologists have discovered that studying rotting fish sheds new light on our earliest ancestry. The researchers, from the Department of Geology at the University of Leicester, devised a new method for extracting information from 500 million year old fossils -they studied the way fish decompose to gain a clearer picture of how our ancient fish-like ancestors would have looked. Their results indicate that some of the earliest fossils from our part of the tree of life may have been more complex than has previously been thought........
  Fri, 19 Mar 2010 17:54:09 +0100
University of Cincinnati professor of paleontology in the McMicken College of Arts and Sciences, and co-author Michael Foote of the University of Chicago publish their research in the Nov. 20 issue of Science with their paper, "Epicontinental Seas Versus Open-Ocean Settings: The Kinetics of Mass Extinction and Origination"........
  Fri, 19 Mar 2010 17:54:09 +0100
Staff at the University of Leicester Archaeological Services (ULAS) have been excited by the results from a recently excavated major Prehistoric site at Asfordby, near Melton Mowbray, Leicestershire. The Mesolithic site may date from as early as 9000BC, by which time hunter-gatherers had reoccupied the region after the last ice age. These hunters crossed the land bridge from the continental mainland -- 'Britain' was only to become an island several thousand years later........
  Fri, 19 Mar 2010 17:54:09 +0100
Fossil plants are windows to the past, providing us with clues as to what our planet looked like millions of years ago. Not only do fossils tell us which species were present before human-recorded history, but they can provide information about the climate and how and when lineages may have dispersed around the world. Identifying fossil plants can be tricky, however, when plant organs fail to be preserved or when only a few sparse parts can be found........
  Fri, 19 Mar 2010 17:54:09 +0100
Archaeologists at Atlanta's Fernbank Museum of Natural History have discovered unprecedented evidence that helps map Hernando de Soto's journey through the Southeast in 1540. No evidence of De Soto's path between Tallahassee and North Carolina has been found until now, and few sites have been located anywhere........
  Fri, 19 Mar 2010 17:54:09 +0100
Ancient choices made by Egyptians digging burial tombs may have led to today's problems with damage and curation of these precious archaeological treasures, but photography and detailed geological mapping should help curators protect the sites, as per a Penn State researcher. "Previously, I noticed that some tomb entrances in the Valley of Kings, Luxor, Egypt, were aligned on fracture traces and their zones of fracture concentration," said Katarin A. Parizek, instructor in digital photography, department of integrative arts. "From my observations, it seems that tomb builders may have intentionally exploited these avenues of less resistant limestone when creating tombs"........
  Fri, 19 Mar 2010 17:54:09 +0100
New technologies and academic collaborations are helping scholars at the University of Chicago analyze hundreds of ancient documents in Aramaic, one of the Middle East's oldest continuously spoken and written languages. Members of the West Semitic Research Project at the University of Southern California are helping the University's Oriental Institute make very high-quality electronic images of nearly 700 Aramaic administrative documents. The Aramaic texts were incised in the surfaces of clay tablets with styluses or inked on the tablets with brushes or pens. Some tablets have both incised and inked texts........
A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a newly released study is right, it may have been responsible for killing the dinosaurs off 65 million years ago. Sankar Chatterjee of Texas Tech University and a team of scientists took a close look at the massive Shiva basin, a submerged depression west of India that is intensely mined for its oil and gas resources. Some complex craters are among the most productive hydrocarbon sites on the planet. Chatterjee will present his research at this month's Annual Meeting of the Geological Society of America in Portland, Oregon........
Imagine the gruesome sound of bones snapping as a thirsty, 30-ton dinosaur tramples a heap of fresh carcasses on his way to a rapidly shrinking lake. That's the scene revealed by a painstaking analysis of thousands of bones unearthed near Moab, Utah by geologists from Brigham Young University. So far the scientists have identified 67 individual dinosaurs representing 8 species and they have only scratched the surface of this diverse quarry. Mysteriously, nearly all of the 4,200 bones recovered so far are fractured, as published in the scientific journal Palaeo........
  Fri, 19 Mar 2010 17:54:09 +0100
Paleontologists in the U.S. and China have discovered a new species of mammal that lived 123 million years ago in what is now the Liaoning Province in China. The newly discovered chipmunk-sized animal, named Maotherium asiaticus, was found in the famous fossil-rich beds of the Yixian Formation in China........
  Fri, 19 Mar 2010 17:54:09 +0100
The strikingly banded rocks scattered across the upper Midwest and elsewhere throughout the world are actually ambassadors from the past, offering clues to the environment of the early Earth more than 2 billion years ago. Called banded iron formations or BIFs, these ancient rocks formed between 3.8 and 1.7 billion years ago at what was then the bottom of the ocean. The stripes represent alternating layers of silica-rich chert and iron-rich minerals like hematite and magnetite........
  Fri, 19 Mar 2010 17:54:09 +0100
The raptor-like Archaeopteryx has long been viewed as the archetypal first bird, but new research reveals that it was actually a lot less "bird-like" than scientists had believed. In fact, the landmark study led by paleobiologist Gregory M. Erickson of The Florida State University has upended the iconic first-known-bird image of Archaeopteryx (from the Greek for "ancient wing"), which lived 150 million years ago during the Late Jurassic period in what is now Germany. Instead, the animal has been recast as more of a feathered dinosaur -- bird on the outside, dinosaur on the inside........
  Fri, 19 Mar 2010 17:54:09 +0100
University of Alberta researcher Phil Bell has found 70 million year old evidence of dinosaur cannibalism. The jawbone of what may be a Gorgosaurus was found in 1996 in southern Alberta. A technician at the Royal Tyrell Museum found something unusual embedded in the jaw. It was the tip of a tooth from another meat-eating dinosaur........
  Fri, 19 Mar 2010 17:54:09 +0100
Nearly 17 years after plucking the fossilized tooth of a new human ancestor from a pebbly desert in Ethiopia, an international team of researchers today (Thursday, Oct. 1) announced their reconstruction of a partial skeleton of the hominid, Ardipithecus ramidus, which they say revolutionizes our understanding of the earliest phase of human evolution........
  Fri, 19 Mar 2010 17:54:09 +0100
University of Connecticut theoretical biologist Peter Turchin and Stanford University ancient historian Walter Scheidel recently developed a new method to estimate population trends in ancient Rome and waded into an intense, ongoing debate about whether the state's population increased or declined after the first century B.C........
  Fri, 19 Mar 2010 17:54:09 +0100
Staying at home may have given the very first termite youngsters the best opportunity to rule the colony when their parents were killed by their neighbors. This is as per new research supported by the National Science Foundation and published recently in the Proceedings of the National Academy of Sciences........
  Fri, 19 Mar 2010 17:54:09 +0100
A skeleton, found at one of the most important, but least understood, Roman sites in Britain is puzzling experts from The University of Nottingham. Dr Will Bowden from the Department of Archaeology, who is leading excavations at the buried town of Venta Icenorum at Caistor St Edmund in Norfolk, said the burial was highly unusual: "This is an abnormal burial. The body, which is probably male, was placed in a shallow pit on its side, as opposed to being laid out properly. This is not the care Romans normally accorded to their dead. It could be that the person was murdered or executed eventhough this is still a matter of speculation"........
Known for their wide variety of vibrant plumage, birds have evolved various chemical and physical mechanisms to produce these beautiful colors over millions of years. A team of paleontologists and ornithologists led by Yale University has now discovered evidence of vivid iridescent colors in feather fossils more than 40 million years old........
  Fri, 19 Mar 2010 17:54:09 +0100
A prehistoric water-filled cave in the Dominican Republic has become a "treasure trove" with the announcement by Indiana University archaeologists of the discovery of stone tools, a small primate skull in remarkable condition, and the claws, jawbone and other bones of several species of sloths. The discoveries extend by thousands of years the scope of investigations led Charles Beeker, director of Academic Diving and Underwater Science Programs at IU Bloomington's School of Health, Physical Education and Recreation, and his interdisciplinary team of collaborators. The researchers' focus has been on the era a mere 500 years ago when the Old World and New World first met after Christopher Columbus stepped ashore in the Caribbean -- and on scintillating pirate lore. This rare find is expected to give insights into the earliest inhabitants of the Greater Antilles and the animals they encountered........

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