Written items, especially those that are official, factual, or informative, often including graphics as well as text.
Coal-bed methane: potential and concerns [ More info] Fact sheet in PDF format on occurrence and recoverability of coalbed methane in the U.S. and related environmental concerns.
Deserts, geology and resources [ More info] Online edition of booklet describing desert geology and mineral resources.
Dinosaurs, fact and fiction [ More info] Online booklet with answers to frequently asked questions about dinosaurs.
Distribution of high-temperature (>150 °C) geothermal resources in California [ More info] Description and map of geothermal resources in California.
Divisions of geologic time-major chronostratigraphic and geochronologic units [ More info] Revised geologic time scale indicating the ages of the lower bounds of chronostratigraphic and geochronologic units as they are currently known. Modifications to those ages made since the previous time scale was released (2007) are clearly marked.
Dragonflies and damselflies (Odonata) of the United States [ More info] Manual on dragonflies and damselflies (Odonata), with links to photo thumbnails, checklists, distribution maps, and other Odonata information.
Earthquakes [ More info] Online booklet on earthquake history, earthquake occurrences, measuring earthquakes, causes, relationship of volcanoes and earthquakes and earthquake prediction.
Energy and Minerals Science at the U.S. Geological Survey [ More info] Explains the purposes and goals of USGS research and monitoring activities that focus on energy and mineral resources and the potential problems that may result from exploitation of those resources.
Environmental health science at the U.S. Geological Survey [ More info] Explains the USGS strategy for research directed towards preventing or reducing the adverse impacts of toxicologic and infectious disease.
Erosion in the Rio Puerco: geography and processes [ More info] Paper on the accelerated erosion of the Rio Puerco, a tributary of the Rio Grande in New Mexico, which has deepened and widened its channel, or arroyo, since the settlement of the region.
Alphabetical Index of Topics
a b c d e f g h i j k l m n o p q r s t u v w x y z