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The glass transition temperature of basalt is about 700 °C (1,292 °F). [4] The mechanisms controlling formation of volcanic glass are further illustrated by the two forms of basaltic glass, tachylite and sideromelane. Tachylite is opaque to transmitted light because of the abundance of tiny oxide mineral crystals suspended in the glass ...
They are geological depressions, the inverse of domes. Elongated structural basins are a type of geological trough . Some structural basins are sedimentary basins , aggregations of sediment that filled up a depression or accumulated in an area; others were formed by tectonic events long after the sedimentary layers were deposited.
The long-term preserved geologic record of a sedimentary basin is a large scale contiguous three-dimensional package of sedimentary rocks created during a particular period of geologic time, a 'stratigraphic succession', that geologists continue to refer to as a sedimentary basin even if it is no longer a bathymetric or topographic depression. [6]
Geologic map of the Michigan Basin. The Michigan Basin is a geologic basin centered on the Lower Peninsula of the U.S. state of Michigan.The feature is represented by a nearly circular pattern of geologic sedimentary strata in the area with a nearly uniform structural dip toward the center of the peninsula.
Emesis basin, a kidney-shaped bowl used in hospitals etc. for vomit; Sink, a plumbing fixture; Toilet basin, an alternate name for the bowl (pan) of a flush toilet; Wash basin, a sink or bowl to contain water for cleaning hands and other minor washing Basin stand or washstand, an obsolete piece of furniture to hold a wash basin, jug, towel, etc.
Obsidian (/ ə b ˈ s ɪ d i. ən, ɒ b-/ əb-SID-ee-ən ob-) [5] is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth.
The Sudbury Basin is located near a number of other geological structures, including the Temagami Magnetic Anomaly, the Lake Wanapitei impact crater, the western end of the Ottawa-Bonnechere Graben, the Grenville Front Tectonic Zone and the eastern end of the Great Lakes Tectonic Zone, but the structures are not directly related to one another ...
A USGS geological map of New Jersey and the surrounding region; the Newark Basin is outlined in white USGS Stratigraphic Column of the Newark Basin The Newark Basin is a sediment -filled rift basin located mainly in northern New Jersey but also stretching into south-eastern Pennsylvania and southern New York .