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Much of our understanding of Earth's past is derived from stratigraphic records exposed in rock outcrops or recovered from drilled cores. These records span immense time intervals, from thousands to ...

Sequence stratigraphy is a relatively new branch of geology that attempts to link prehistoric sea-level changes to sedimentary deposits. The 'sequence' part of the name refers to cyclic sedimentary ...

Gale Crater's central sedimentary mound (Aeolis Mons or, informally, Mount Sharp) is a 5.5-km-tall remnant of the infilling and erosion of this ancient impact crater. Given its thickness and age, ...

Eugene Shoemaker with some of the first geologic maps of the Moon, Flagstaff AZ, mid-1960's Many people are surprised when they learn that well before the first landing of Apollo in 1969, we already ...

An older model of the geological record is making a comeback-with new twists-partly through the research of University of Cincinnati geologist Carlton Brett. In an invited address Monday morning, Nov.

Jurassic, Pleistocene, Precambrian. The named times in Earth's history might inspire mental images of dinosaurs, trilobites or other enigmatic animals unlike anything in our modern world. Labels like ...

Deep-sea sediment cores are vital to our understanding of the past and present oceans. They record the geological history of the ocean basins, providing evidence for changing climates, emerging ...

After years of debate, the International Chronostratigraphic Chart has officially been revised. What does that mean, exactly? Our current point in Earth's geological timeline has been updated so that ...

Field geology courses at the Brauer Field Station are intensive, project-oriented experiences designed to instruct students in the use of basic field methods and equipment, and develop their skills of ...