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antarctica

March 6, 2016 by wpengine

AP3 Expedition 2016

Q: Will you be digging under deep layers of ice?

A: We will not be digging through ice for our expedition. Our expedition is timed for the end of the Austral summer, when most rock along the northernmost tip of the peninsula is readily available. There will be glaciers where we will be working but they will not be covering all of the islands where we will be working. Unfortunately, the possibility of a snow storm can still limit the amount of exposed rock with fossils.

Matt Lamanna, is a paleontologist and the principal dinosaur researcher at Carnegie Museum of Natural History in Pittsburgh. Matt and his team of researchers blog frequently from the field at antarticdinos.org.

Filed Under: Blog Tagged With: antarctica, expedition, fossils, Matt Lamanna

March 2, 2016 by wpengine

AP3 Expedition 2016

Antarctica

 

Q: How do you find fossils in Antarctica?

A: In brief, there are basically two ways by which one can determine where to look for fossils. The first has to do with the fact that most of the Earth’s surface has been mapped from a geological standpoint. Geologic maps show what rocks are exposed at the surface. Fossils are found almost exclusively in sedimentary rocks (e.g., shale, mudstone, sandstone) as opposed to igneous and metamorphic rocks. So the first step would be to examine the map for those. Next, for those interested in dinosaurs, scour the map for sedimentary rocks that were deposited during the Mesozoic Era or Age of Dinosaurs ( we know that dinos evolved more-or-less 235 million years ago and died out (except for their descendants, birds) 66 million years ago). So search the map for sedimentary rocks that were deposited during that time. Lastly, dinos were almost exclusively land-dwelling animals, so look for Mesozoic sedimentary rocks that were deposited in bodies of water that were near land (i.e., rivers, ponds, lakes, ocean coastlines). If all three criteria are met, and you can get to the place, you might have a fighting chance of finding dino fossils there.

The second way is simpler — you just go where people have found fossils before.

Matt Lamanna, is a paleontologist and the principal dinosaur researcher at Carnegie Museum of Natural History in Pittsburgh. Matt and his team of researchers blog frequently from the field at antarticdinos.org.

Filed Under: Blog Tagged With: antarctica, expedition, fossils, Matt Lamanna

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