Geology of the Konakpinar--Sarica area, Sivas Province, Turkey

Barosh, Patrick James; Sermin, Salim; Gencel, Ilker; Sengun, Metin; Ekren, Frank

Abstract:

The junction of several major structures and stratigraphic sequences is in the Konakpinar-Sarica area of central Turkey. Most of the area is underlain by Upper Jurassic to Cretaceous limeston and siltstone, early Tertiary sedimentary rock, and remnants of younger volcanic rocks and lacustrine deposits. The northeastern part of the area, however, is formed of serpentinite, of possible Cretaceous age, unconformably overlain by Upper Cretaceous conglomerate and siltstone that crop out extensively east of the area. The regional structure changes direction in the area. Folds and faults change across a northerly striking hinge line from northeast trends on the west to northwest trends on the east. A north-trending regional fault zone is a little east of the hinge line. The northern part of this fault zone and a northwest-striking fault, a possible thrust, east of it form the boundary between the two stratigraphic provinces. The area northeast of this boundary is cut by a series of vertical northwest-trending faults that are downdropped on the southwest. A large northeast-trending fault that is part of a broad fault zone that extends from the Mediterranean Sea northeastward to Divrigi is in the northwest corner of the area. Some thrust faults cut the Cretaceous rocks in the western part of the area; the Upper Jurassic limestone may be allochthonous. The only economic deposit known in the area is at the Otlukilise Iron Mine where iron is present in a sedimentary filling of sinkholesand as secondary replacement deposits in limestone at their borders. Minor deposits of chrome, copper, and coal also occur in the area.

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USGS Numbered Series

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17177

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Barosh, Patrick James; Sermin, Salim; Gencel, Ilker; Sengun, Metin; Ekren, Frank

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ENGLISH

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iii, 58 leaves :ill., maps ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

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72-25

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Geology of the Konakpinar--Sarica area, Sivas Province, Turkey; 1972; OFR; 72-25; Barosh, Patrick James; Sermin, Salim; Gencel, Ilker; Sengun, Metin; Ekren, Frank

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1972

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citation/reference

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Geology of the Konakpinar--Sarica area, Sivas Province, Turkey; 1972; OFR; 72-25; Barosh, Patrick James; Sermin, Salim; Gencel, Ilker; Sengun, Metin; Ekren, Frank