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The andesite line is the most significant regional geologic distinction in the Pacific Ocean basin. It separates the mafic basaltic volcanic rocks of the Central Pacific Basin from the partially submerged continental areas of more felsic andesitic volcanic rock on its margins.
The State Line Archeological District (also known as the State Line site [1]) is a complex of archaeological sites and national historic district located west of Elizabethtown, Ohio, United States. Located on both sides of the Indiana /Ohio border, [ 2 ] the historic district is composed of five contributing properties spread out across 8 acres ...
This part of the state was heavily frequented in the pre-Columbian era because its countryside was highly favorable for human habitation: the Ohio and Miami Rivers provide good transportation; the land is fertile; and abundant food can be found. [3] Mount Nebo has gained a reputation as one of the most valuable archaeological sites in ...
Ohio produces three billion dollars worth of natural gas and $844 million of oil annually. Coal deposits were first recognized in the 1740s by early settlers and were mapped as early as 1752. Decreased demand due to increased natural gas production has reduced coal mining in the 2010s, although one underground mine and three surface mines ...
More than 100 pages use this file. The following list shows the first 100 pages that use this file only. A full list is available.. Akron, Ohio; Akron Fulton International Airport
I-75 at the Kentucky state line in Cincinnati: I-90 at the Pennsylvania state line in Conneaut 1961: 1965 SR 2: 227.13: 365.53 SR 37 in Hicksville Township: US 20 in Painesville Township: 1912: current SR 3: 255.52: 411.22 US 27/US 42/US 52/US 127 in Cincinnati: US 6/US 20/US 42/US 322/US 422 in Cleveland: 1923: current SR 4: 207.22
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QAPF diagram with basalt/andesite field highlighted in yellow. Andesite is distinguished from basalt by SiO 2 > 52%. Andesite is field O2 in the TAS classification.. Andesite is an aphanitic (fine-grained) to porphyritic (coarse-grained) igneous rock that is intermediate in its content of silica and low in alkali metals.