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Ralph Early Grim (February 25, 1902 – August 19, 1989) was an American geologist and scientist, often referred to as the "Father of Mineralogy" because he made many discoveries during his investigations of clay materials. [1] He was one of the most outstanding mineralogists of his time and was well-known throughout the world in the field of ...
The Cambrian Hardyston Formation or Hardyston Quartzite is a mapped bedrock unit in Pennsylvania and New Jersey. It was originally described by Wolff and Brooks in 1898, [1] where two outcrops in Hardyston Township, Sussex County, New Jersey, were described. They originally named it the Hardistonville quartzite, but the name was later changed ...
In 1877–1881, he executed a topographic and geological survey of 17,000 square miles (44,030 km 2) in northeastern Iowa. [5] [6] [7] He then undertook an examination of the loess of the Mississippi Valley, researched the great Quaternary lakes of Nevada and California and studied a recent fault movement in the middle Atlantic slope. [4]
Applin was born as Esther Richards on November 24, 1895 in Newark, Ohio, to Gary Richards, a civil engineer with the United States Army, and Jennie DeVore.Because of her father's work, she lived in various cities in Ohio, then later lived in Fort Des Moines, Iowa, and eventually moved to San Francisco at the age of 12. [3]
Anna Jonas Stose. Anna Jonas Stose (August 17, 1881 – October 27, 1974) [2] was a major geological pioneer, who worked for the American Museum of Natural History, Maryland Geological Survey, Pennsylvania Geological Survey, Virginia Geological Survey, and the United States Geological Survey. [3] She is best known for her work mapping the ...
The grave of Henry Darwin Rogers, Dean Cemetery Henry Darwin Rogers FRS FRSE LLD (1 August 1808 – 26 May 1866) was an American geologist. His book, The Geology of Pennsylvania: A Government Survey (1858), was regarded as one of the most important publications on American geology issued up to that point.
The Pennsylvania Geological Survey, or Bureau of Topographic and Geologic Survey (BTGS), is a geological survey enacted by the Pennsylvania General Assembly "to serve the citizens of Pennsylvania by collecting, preserving, and disseminating impartial information on the Commonwealth's geology, geologic resources, and topography in order to contribute to the understanding, wise use, and ...
The geology of Mississippi includes some deep igneous and metamorphic crystalline basement rocks from the Precambrian known only from boreholes in the north, as well as sedimentary sequences from the Paleozoic. The region long experienced shallow marine conditions during the tectonic evolutions of the Mesozoic and Cenozoic, as coastal plain ...