Build a Model Aquifer Activity Source: Source: Geoscientists Without Borders®, Society of Exploration Geophysicists Foundation. https://seg.org/gwb Adapted with permission. The United Nations includes clean water and sanitation in its sustainable development goals. Many places face severe water shortages. The Geoscientists Without Borders® (GWB) program supports teams to collaborate with communities to solve problems, including water shortages. GWB scientists use geophysical techniques to find underground layers of sediments or rock that contain enough water to be drilled for water wells. [Read More]

How Natural Gas Forms Activity Source: American Association of Petroleum Geologists. Adapted with permission from American Geosciences Institute in collaboration with Project SEED. Think about the energy you use every day to cook, cool your home, or travel. For most of us, the main sources of this energy are fossil fuels: coal, oil, and natural gas. Whether used directly, as gasoline, heating oil, or natural gas, or to generate electricity (by burning coal), fossil fuels are a big part of the world’s energy picture. [Read More]

Surface Processes Activity Source: Organizing partners of Geologic Map Day are the U.S. Geological Survey, the Association of American State Geologists, the National Park Service, the Geological Society of America, NASA, and the American Geosciences Institute. Part A: Younger Deposits Active erosion wears away surface rocks while deposition piles loose sediments on top of existing surfaces. Over time loose sediments may be compacted and cemented, which forms sedimentary rocks. Younger rocks and sediments are also shown on the geologic map. [Read More]

Surficial Features Activity Source: America Geophysical Union. Adapted with permission. Various types of sediments, or “surficial features,” lie above the bedrock in many places. The U.S. Geological Survey provides a map illustrating this phenomenon at http://pubs.usgs.gov/of/2003/of03-275/. “Most daily human activities occur on or near the Earth’s surface,” as the introduction to the map states. “Homeowners, communities, and governments can make improved decisions about hazard, resource, and environmental issues, when they understand the nature of surficial materials and how they vary from place to place. [Read More]

Understanding Paleoclimate Activity Source: American Geophysical Union. Adapted with permission from EarthComm: Earth System Science in the Community, American Geosciences Institute. Climate scientists study evidence in the geologic record, such as fossils, to figure out what climate was like over hundreds of thousands of years (“paleoclimate”). One fossil they use is pollen, a part of a flowering plant that helps make a seed. Pollen can be blown into lakes, where it is preserved in sediment. [Read More]