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Amateur geology or rock collecting (also referred to as rockhounding in the United States and Canada) is the non-professional study and hobby of collecting rocks and minerals or fossil specimens from the natural environment. [1] [2] In Australia, New Zealand and Cornwall, the amateur geologists call this activity fossicking. [3]
At Yale he began to research the geology of Connecticut, producing a full geological map of the state in 1985. In 1948 he was appointed an assistant editor of the American Journal of Science , becoming its editor from 1954 to 1995.
An experiment in 2005 undertook a variation of the 1774 work: instead of computing local differences in the zenith, the experiment made a very accurate comparison of the period of a pendulum at the top and bottom of Schiehallion. The period of a pendulum is a function of g, the local gravitational acceleration. The pendulum is expected to run ...
Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the ...
Kathleen Ann Campbell is an American-born [1] New Zealand geology and astrobiology academic. She is currently a full professor at the University of Auckland. [2] Her work is broadly centred in the topic of paleoecology and how ancient organisms interacted with their environment and whether they were capable of surviving under extremely hard conditions.
Indenter tectonics, also known as escape tectonics, is a branch of strike-slip tectonics that involves the collision and deformation of two continental plates. It can be observed in many situations around the world, and is associated with high-grade metamorphism and extensive lateral displacement of strata along oblique strike-slip faults [1]
Experimental petrology is the field of research concerned with experimentally determining the physical and chemical behavior of rocks and their constituents. [1] Because there is no way to directly observe or measure deep earth processes, geochemists rely on experimental petrology to establish quantitative values and relationships in order to construct models of the deep earth.
He received his Ph.D from the University of Oslo in 1946. He subsequently worked at the University of Chicago (1948–1961) and at the Geophysical Laboratory of the Carnegie Institution for Science (1952–1955) at the Universidade Federal de Ouro Preto (1960–1961) and for the rest of his career at the University of Uppsala (1961–1982), [4] where he established the Hans Ramberg Laboratory.