Koffman Coauthors Paper on Greenland Ice Sheet

Assistant Professor of Geology Bess Koffman has contributed to a study recently published in Geophysical Research Letters. The article assessed the causes of the recent melting of the Greenland Ice Sheet. “Satellite measurements and computer models have shown that the reflectivity (or albedo) of the Greenland Ice Sheet has decreased in recent decades, causing increased...

Koffman Awarded AAUW American Fellowship

Assistant Professor of Geology Bess Koffman has been awarded an American Association of University Women (AAUW) American Fellowship for 2021-22. Established in 1888, the American Fellowship is “AAUW’s largest fellowship program and the oldest non-institutional source of graduate funding for women in the United States,” according to its website. The fellowship will support Koffman’s research...

Koffman and Students Coauthor Paper in Global Biogeochemical Cycles

Assistant Professor of Geology Bess Koffman and students Meg Yoder ’19, Taylor Methven ’20, Helen Sears ’20, and Lena Hanschka ’21 coauthored the paper “Glacial Dust Surpasses Both Volcanic Ash and Desert Dust in Its Iron Fertilization Potential” recently published in the journal Global Biogeochemical Cycles.  In the study, the authors demonstrate that glacially sourced dust from...

Koffman Receives Outstanding Reviewer Award from Communications Earth and Environment

Assistant Professor of Geology Bess Koffman was named an Outstanding Reviewer for 2021 by Communications Earth and Environment, a Nature research journal. Koffman, a geochemist and paleoclimatologist, met the journal’s criteria for the award by “making a significant and positive contribution to the peer review process, demonstrating professionalism and compassion in their reviews, and providing comments that help the...

Gastaldo Coauthors Paper on South Africa’s Karoo Basin

Robert Gastaldo, the Whipple-Coddington Professor of Geology, Emeritus, has coauthored a new article, Trends in stable-isotopes and climate proxies from late Changhsingian ghost landscapes of the Karoo Basin, South Africa, published in Frontiers in Science: Ecology and Evolution. “The manuscript continues reports of our studies on the paleoclimatology of the latest Permian in the Karoo Basin,...

Koffman Authors Paper on Dust in New Zealand

Assistant Professor of Geology Bess Koffman has coauthored a new paper, “New Zealand as a source of mineral dust to the atmosphere and ocean,” published in Quaternary Science Reviews. The study characterizes New Zealand’s South Island as a source of dust to the high-latitude Southern Hemisphere. To learn more about why dust is important in...

New Textbook by Gastaldo on History of Nature

Robert Gastaldo, the Whipple-Coddington Professor of Geology, has coedited a new textbook Nature Through Time (Springer, 2020). Starting from the initial colonization of land about 430 million years ago to today, the book traces the changes primarily in terrestrial ecosystems from the world around us. The book, with 14 chapters and 96 different contributors from...

Ortiz Contributes to Article About Coral Reef Island Resiliency

Alejandra Ortiz, assistant professor of geology, was interviewed for an article titled “A Brighter Future for Coral Reef Islands” that appeared in Eos, a source of news and science for the American Geophysical Union. The article reports on new research that shows low-lying coral reef island may be more resilient to rising ocean levels than previously thought. If...

Gastaldo and Kus ’18 Coauthor Paper Published in Journal of Sedimentary Research

Robert Gastaldo, the Whipple-Coddington Professor of Geology, and Kaci Kus ’18 have coauthored a paper just published in the Journal of Sedimentary Research that’s based on Kus’s honors thesis. The paper, “Calcic Vertisols in the upper Daptocephalus Assemblage Zone, Balfour Formation, Karoo Basin, South Africa: Implications for Late Permian Climate,” stems from research Kus conducted for a project in South Africa...

Professor Robert Gastaldo Published in Nature Communications

Current Ocean Crisis Indicates Land May Be Experiencing Even More Stress New research from an international team of scientists led by Colby College Professor of Geology Robert Gastaldo appears this week in Nature Communications, the world’s leading multidisciplinary science journal. Titled “The base of the Lystrosaurus Assemblage Zone, Karoo Basin, predates the end-Permian marine extinction,”...

Smithsonian Continues Gastaldo’s Appointment as Academic Researcher

The Smithsonian Institution Fellowship Program (SIFP) has continued the appointment of Robert Gastaldo as an academic researcher. Gastaldo, the Whipple-Coddington Professor of Geology, had been associated with the Smithsonian for close to 35 years. His current research with SIFP is with the Smithsonian’s William DiMichele, and together they seek to understand what happened to Deep Time...

Gastaldo’s Findings on Simultaneous Mass Extinctions Covered by Phys.org and Others

Recently released findings by Robert Gastaldo, the Whipple-Coddington Professor of Geology, were covered at Phys.org, as provided by the National Science Foundation. “New research led by Colby College geologist Robert Gastaldo has revealed the most definitive proof to date that the extinctions did not occur at the same time. The findings, published in the journal PALAIOS,...

Professor Proves Mass Extinction of Land and Sea Biodiversity 250 Million Years Ago Did Not Occur Simultaneously

Vertebrate Fossil Record from Earlier Studies is Inaccurate. New research from a team of leading scientists led by Colby College professor and geologist Robert Gastaldo has revealed the most definitive proof to date that a near-instantaneous marine and terrestrial end-Permian mass extinction did not occur simultaneously. The important findings, recently published in the leading academic...

Gastaldo Publications Cast More Shade on Long-held Extinction Model

Robert Gastaldo, Colby’s Whipple-Coddington Professor of Geology, and colleagues recently published an article in the journal PALAIOS, that upsets long-held beliefs about the End-Permian mass extinction 252 million years ago. Gastaldo is coauthor of an article titled “Testing the Daptocephalus and Lystrosaurus Assemblage Zones in a Lithostratographic, Magnetostratigraphic, and Palynological Framework in the Free State,...

Gastaldo is Featured Speaker at Fall Meeting of the New Hampshire Geological Society

Robert Gastaldo, the Whipple-Coddington Professor of Geology, is the featured speaker at the New Hampshire Geological Society’s fall meeting. Gastaldo talk is titled “The Terrestrial Record of the End-Permian Mass Extinction – Karoo Province, South Africa,” which will discuss the end-Permian extinction event as it is recorded in South Africa, as a model for the Sixth...

Gastaldo Article on Plants and Mass Extinction Published in Nature

The journal Nature has published an article by Robert Gastaldo, the Whipple-Coddington Professor of Geology, in its News and Views section. The March 1 article, “Ancient plants escaped the end-Permian mass extinction,” details what two papers (one by Fielding et al., the other by Nowak et al.) “reveal about what happened to terrestrial plants during the end-Permian crisis,” Gastaldo writes. Written for a general...

Croft Book Come Fly With Us Published

A book by Melvin Croft, an instructor in the Department of Geology, was recently published in the University of Nebraska’s Outward Odyssey: A People’s History of Spaceflight Series. Come Fly With Us: NASA’s Payload Specialist Program details “an elite group of space travelers who flew as members of many space shuttle crews from pre-Challenger days to Columbia in 2003. Not part of the regular...

NSF Grant Awarded to Gastaldo and Glasspool

A $231,571 National Science Foundation grant was awarded to Robert Gastaldo, the Whipple-Coddington Professor of Geology, and Ian Glasspool, research scientist in geology, for their project titled “RUI: The Timing and Evolution of Devonian Fire Systems and Their Implications for Atmospheric Oxygen Concentration.” This marks the 10th NSF grant Gastaldo has received since he began at the...

Gastaldo Featured in Undark Story on South Africa Research

Robert Gastaldo, the Whipple-Coddington Professor of Geology, was featured prominently in an Undark story about research in South Africa’s Karoo region. Gastaldo has been researching the South African region where the end-Permian extinction is reported, and this story looks at what researchers are discovering in the rocks. “’If the marine and continental biota collapsed simultaneously, or even a...

Koffman Coauthors Paper on Denali Ice Core Records

Assistant Professor of Geology Bess Koffman coauthored a paper in the Journal of Geophysical Research: Atmospheres. Titled “Denali ice core methanesulfonic acid records North Pacific marine primary production,” the paper focuses on developing a tool for assessing past changes in primary production in the North Pacific, i.e., the base of the marine food web. The paper developed...