Subsurface geology of Medina Group (Lower Silurian) and Clinton Group (Lower to Upper Silurian) of New York

Conference · Sat Dec 01 04:00:00 EST 1984 · Am. Assoc. Pet. Geol., Bull.; (United States)

OSTI ID:5741396

Kearney, M W

The depositional environments and geologic history of the Medina Group (Lower Silurian) and the Clinton Group (Lower to Upper Silurian) of New York have been interpreted from a regional subsurface study using approximately 250 ..gamma..-ray logs and 125 sample logs. A sequence of paleogeographic maps illustrate the geologic history and depositional environments associated with this predominantly clastic, rock sequence. Seven principle depositional environments are recognized on the basis of subsurface sedimentary facies. The Silurian clastic rocks were deposited during an overall marine transgression that was interrupted by three major progradational phases. The orogenic episodes represented by these progradational phases steadily decreased in intensity. The sediment influx during the first progradational phase was large enough to produce a deltaic system that extended throughout New York. During the second progradational phase, the sediment influx was small relative to the first event, and subsidence probably increased from loading of the Grimsby sediments. The deltaic system that developed during this time was restricted to east-central New York. The final progradational phase represents an even smaller influx of terrigenous material; only a linear clastic shoreline developed in eastern New York. This phase marks the last major influx of terrigenous clastic sediments until Devonian time.

• Research Organization: Sun Exploration and Production Co., Dallas, TX
• OSTI ID: 5741396
• Report Number(s): CONF-8410269-
• Conference Information: Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 68:12
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200 -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580100* -- Geology & Hydrology-- (-1989)
DEPOSITION
FEDERAL REGION II
GEOLOGIC AGES
GEOLOGIC FORMATIONS
GEOLOGIC HISTORY
GEOPHYSICAL SURVEYS
NEW YORK
NORTH AMERICA
PALEOZOIC ERA
RESERVOIR ROCK
SILURIAN PERIOD
SOURCE ROCKS
SURVEYS
USA