May 23, 2018
Down to Earth With: Sharon Mosher
Sharon Mosher was born with a rock in her hand, as her mom used to say. As a child in Illinois, she was fascinated by geology, conducting mineral …
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Geology
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1236 articles · Page 11 of 52
May 22, 2018
Down to Earth With: Todd Hoefen
On any given day, you might find Todd Hoefen studying the material properties of other planets, building remote sensing applications, sampling …
May 22, 2018
Down to Earth With: Katerina Dontsova
Soil scientist Katerina Dontsova didn’t imagine she would be working at one of the nation’s most famous laboratories when she arrived at Purdue …
May 22, 2018
Down to Earth With: Nick Brooks
More than 6,000 years ago, the world’s most famous desert was no desert at all. A wet, grassy landscape, the Sahara supported populations of …
May 22, 2018
Down to Earth With: Jeffrey Post
The gems and minerals exhibit at the Smithsonian Institution’s National Museum of Natural History in Washington, D.C., has more than 3,000 …
May 22, 2018
Down to Earth With: Dr. Jonathan Patz
From stitching up cuts in Missoula, Mont., to authoring parts of the Intergovernmental Panel on Climate Change reports, Dr. Jonathan Patz has …
May 22, 2018
Down to Earth With: Matthew Parker
Matthew Parker In 1985, the television show NOVA dedicated an entire hour to the pioneers of tornado research, the men and women who first spent …
May 22, 2018
Down to Earth With: Hope Jahren
Hope Jahren is often described as a biogeologist, but that seems too narrow a description. Currently a professor at the University of Hawaii in …
May 16, 2018
When more humidity means less water
Scientists have long assumed that temperature is the main control on melting of winter snowpacks across the mountainous western United States. In …
May 11, 2018
El Nino "flavors" affect California rainfall
Twenty years ago, the 1997–98 El Niño surpassed the 1982–83 event to become the strongest El Niño ever recorded, contributing to famine and …
May 11, 2018
Geologic evidence confirms existence of 405,000-year Milankovitch cycle
Earth’s rock record preserves evidence of numerous natural processes, from evolution and extinction to catastrophes and climate change, and …
May 2, 2018
Geoscience on Film: The Burma Arc in Myanmar
Doug Prose, formerly a geologist with the U.S. Geological Survey, has co-produced documentaries showcasing Earth and the geosciences with his …
May 1, 2018
Skate eggs found on hydrothermal vents
In July 2016, a team of scientists came upon a surprise 1,660 meters beneath the ocean’s surface near the Galápagos Islands: a clutch of yellow …
May 1, 2018
Are diatoms triggering submarine landslides?
Far beneath the ocean’s surface, puzzling deposits from huge submarine landslides can be found amid expanses of nearly flat ocean floor. Without …
May 1, 2018
Which warm waters boosted Hurricane Harvey?
Last August, Hurricane Harvey walloped Texas, dropping more than 100 centimeters of rain on Houston and nearby areas, and causing more than $125 …
May 1, 2018
From silver to snow: Full cloud seeding cycle observed
Cloud seeding — adding particles to clouds to modify precipitation patterns — has been suggested as a way to trigger rain and snowfall, which …
May 1, 2018
Lava shaped Lake Tahoe
With its preternaturally clear blue waters, Lake Tahoe is tranquil today, but the deep lake straddling the border of California and Nevada was …
May 1, 2018
Swelling clay slows landslides
Rainfall can trigger landslides, and it can also cause slow-moving slides to speed up. But researchers have observed that rain also appears to …
May 1, 2018
Mineral Resource of the Month: Chromium
PRODUCTION GEOLOGIC OCCURENCE Although chromium is a metal, it does not occur naturally in metallic form. Chromium can be found in many minerals, …
May 1, 2018
"Greening" stormwater in Philadelphia
When environmental geologist David Wilcots joined Sci-Tek Consultants in 2014, he became involved with the Philadelphia Water Department’s Green …
May 1, 2018
Geologic Column: Rebranding Alexander
by Ward Chesworth “With great power comes great responsibility.” — Various (including “Amazing Fantasy #15,” the comic in which Spider-Man was …
May 1, 2018
Travels in Geology: Rafting the Salmon River through the Idaho Batholith
Give a river time and it will chart a path through even the mightiest mountains, cutting down through the rocky record of Earth’s long history. …
May 1, 2018
Getting there and getting around Idaho
If you’re interested in a trip down the Main Salmon, you have two options: put a trip together yourself, or hire a professional outfitter to take …
May 1, 2018
Fieldwork among the pixels: Virtual and augmented reality diversify geoscience education
by Sarah Derouin Weeks after taking his students on a field trip to the Sierra Nevada, Ryan Hollister, a high school earth science teacher in …