Dig deeper into geology by learning about everything from ancient fossils and rock formation, to present-day landslides and earthquakes. Geology Learn the Basics of Geology. Geology About Uranium-Lead Dating. Geology How Earth Was Born. Geology What Defines a Mineral? Geology What Are Plutons?
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Welcome to the Isotope Geology Laboratory! - Isotope Geology Laboratory
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Welcome to the Isotope Geology Laboratory!
Now, examinations of fire-baked tools from the site suggest that these ancient people lived more than , years ago, making them twice as old as previously thought. The findings, announced in Nature on Wednesday , fill a crucial gap in the human fossil record. However, their teeth closely resemble those in the mouths of modern humans—and their faces looked just like ours.
A composite computer reconstruction of fossils from Jebel Irhoud shows a modern, flattened face paired with an archaic, elongated braincase. For decades, researchers seeking the origin of our species have scoured the Great Rift Valley of East Africa. Now, their quest has taken an unexpected detour west to Morocco: Researchers have redated a long-overlooked skull from a cave called Jebel Irhoud to a startling , years ago, and unearthed new fossils and stone tools. The result is the oldest well-dated evidence of Homo sapiens , pushing back the appearance of our kind by , years.