site:geosociety.org

New Vestiges of the First Life on Earth Discovered in Saudi Arabia https://www.geosociety.org/GSA/News/pr/2024/24-05.aspx 4 comments 28/7/2024 science

Impact that killed the dinosaurs may have triggered a 'mega-earthquake' that lasted weeks to months, research finds https://www.geosociety.org/GSA/News/pr/2022/22-54.aspx 12 comments 6/10/2022 science

Movement of the solar system through the Milky Way’s galactic spiral arms helped form Earth’s first continents. Regions of space with dense interstellar clouds may send more high-energy comets crashing to the surface of the Earth, seeding enhanced production of continental crust. https://www.geosociety.org/GSA/News/pr/2022/22-44.aspx 3 comments 26/8/2022 science

Secondary craters around larger craters are well known from other planets and moons but have never been found on Earth until now. Several dozen small impact craters, 10-70 m in size, have been discovered in southeastern Wyoming, formed by ejected blocks from a large primary crater. https://www.geosociety.org/GSA/News/pr/2022/22-07.aspx 4 comments 1/3/2022 science

Lake Formation and Expansion Due to Sea-Level Rise Causes Freshwater Resource Depletion on Small Islands https://www.geosociety.org/GSA/News/pr/2021/21-65.aspx 3 comments 13/10/2021 environment

Fluvial Mapping of Mars. It took fifteen years of imaging and nearly three years of stitching the pieces together to create the largest image ever made, the 8-trillion-pixel mosaic of Mars’ surface. Now, the first study to utilize the image in its entirety provides insight into Mars’ river systems. https://www.geosociety.org/gsa/news/pr/2020/20-39.aspx 5 comments 23/12/2020 science

Evolution after the Chicxulub Asteroid Impact: The Rapid Response of Life to the End-Cretaceous Mass Extinction Event. https://www.geosociety.org/gsa/news/pr/2020/20-22.aspx 3 comments 15/7/2020 science

Atmospheric Carbon Dioxide Levels Greater than the Past 23 Million-Year Record. CO2 "timeline" revealed no evidence for any fluctuations in CO2 that compares to the dramatic CO2 increase of the present day, which suggests today's greenhouse disruption is unique across recent geologic history. https://www.geosociety.org/GSA/News/pr/2020/20-17.aspx 11 comments 14/6/2020 environment

Researchers report two newly identified super-eruptions associated with the Yellowstone hotspot track, including what they believe was the volcanic province's largest and most cataclysmic event. The results indicate the hotspot may be waning in intensity. https://www.geosociety.org/gsa/news/pr/2020/20-18.aspx 5 comments 9/6/2020 science

Atmospheric Carbon Dioxide Levels Greater than the Past 23 Million-Year Record. CO2 "timeline" revealed no evidence for any fluctuations in CO2 that compares to the dramatic CO2 increase of the present day, which suggests today's greenhouse disruption is unique across recent geologic history. https://www.geosociety.org/GSA/News/pr/2020/20-17.aspx 10 comments 2/6/2020 environment

Atmospheric Carbon Dioxide Levels Greater than the Past 23 Million-Year Record. CO2 "timeline" revealed no evidence for any fluctuations in CO2 that compares to the dramatic CO2 increase of the present day, which suggests today's greenhouse disruption is unique across recent geologic history. https://www.geosociety.org/gsa/news/pr/2020/20-17.aspx 18 comments 2/6/2020 science

Catastrophic Outburst Floods Carved Greenland’s “Grand Canyon” https://www.geosociety.org/gsa/news/pr/2020/20-13.aspx 4 comments 3/5/2020 science

Deformation of Zealandia, Earth’s Hidden Continent, Linked to Forging of the Ring of Fire https://www.geosociety.org/gsa/news/pr/2020/20-03.aspx 6 comments 7/2/2020 science

Cuba’s rivers run clean after decades of sustainable farming. Despite the island’s history of large-scale agriculture, the rivers studied had much lower levels of dissolved nitrogen — an indicator of fertilizer use — than did the Mississippi River Basin in the United States. https://www.geosociety.org/GSA/Publications/GSA_Today/GSA/GSAToday/science/G419A/article.aspx 14 comments 5/2/2020 environment

Cuba’s rivers run clean after decades of sustainable farming. Despite the island’s history of large-scale agriculture, the rivers studied had much lower levels of dissolved nitrogen — an indicator of fertilizer use — than did the Mississippi River Basin in the United States. https://www.geosociety.org/gsa/publications/gsa_today/gsa/gsatoday/science/g419a/article.aspx 1804 comments 5/2/2020 science

Microplastics are becoming a permanent part of the planet’s sedimentary layers https://www.geosociety.org/gsa/news/pr/2019/19-40.aspx 6 comments 24/9/2019 science

Hurricane Maria hit the island of Puerto Rico on 20 September 2017 and triggered more than 40,000 landslides in at least three-fourths of Puerto Rico's 78 municipalities http://www.geosociety.org/gsa/news/pr/2019/19-03.aspx 3 comments 7/2/2019 science

[Geology] Chicxulub and the Exploration of Large Peak-Ring Impact Craters through Scientific Drilling http://www.geosociety.org/gsatoday/science/g352a/article.htm 3 comments 29/9/2017 science

For the first time, somebody has found trilobite eggs. The exoskeletons are replaced with pyrite, elliptical in shape and nearly 200 micrometers long. http://www.geosociety.org/gsa/news/releases/gsa/news/pr/2017/17-05.aspx 3 comments 23/2/2017 science

Zealandia: Earth’s Hidden Continent https://www.geosociety.org/gsatoday/archive/27/3/article/gsatg321a.1.htm 3 comments 17/2/2017 science

Introducing the new continent Zealandia researchers suggests a collection of continental islands, fragments, and slices in the southwest Pacific Ocean may have been overlooked and more correctly represents a geological continent. https://www.geosociety.org/gsatoday/archive/27/3/article/gsatg321a.1.htm 6 comments 16/2/2017 science

Tidal heating on Uranus' moon Miranda http://www.geosociety.org/news/pr/2014/14-62.htm 5 comments 21/9/2014 space

An anthropogenic marker horizon in the future rock record: Plastiglomerate http://www.geosociety.org/gsatoday/archive/24/6/article/i1052-5173-24-6-4.htm 4 comments 30/5/2014 science

Could the Colorado River Once Have Flowed into the Labrador Sea? http://www.geosociety.org/news/pr/13-69.htm 6 comments 4/11/2013 science