Gravity anomalies in Silurian pinnacle reef trend, southwestern Indiana

Conference · Tue Aug 01 00:00:00 EDT 1989 · AAPG Bulletin (American Association of Petroleum Geologists); (USA)

OSTI ID:5460951

Malinconico, Jr, L L; Gognat, T A; Scher, P L ^[1]

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1. Lafayette College, Easton, PA (USA)

Structures produced over the top or along the margins of Silurian Pinnacle reefs have proven to be the source of significant oil production in the eastern Illinois basin. The authors have been able to refine gravity methods that can assist in the exploration of such reef targets. A gravity/density model was developed by combining the 1980 work of Dana at the Wilfred pool (Sullivan County, Indiana) with other lithologic and log data in southwestern Indiana. This model includes the density differences between the reef facies and surrounding lithologies as well as density variations that are the result of compaction of the sedimentary sequence above the reef. The density models suggest that positive gravity anomalies with amplitude between 1.5 to 2.5 mgals might occur over the reefs.

• OSTI ID: 5460951
• Report Number(s): CONF-8909166-; CODEN: AABUD
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (USA), Vol. 73:8; Conference: American Association of Petroleum Geologists (AAPG) eastern section meeting, Blommington, IN (USA), 10-13 Sep 1989; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
INDIANA
GRAVITY SURVEYS
PETROLEUM DEPOSITS
EXPLORATION
GEOLOGIC MODELS
LITHOLOGY
REEFS
SEDIMENTARY BASINS
SILURIAN PERIOD
FEDERAL REGION V
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
NORTH AMERICA
PALEOZOIC ERA
RESOURCES
SURVEYS
USA
020200* - Petroleum- Reserves
Geology
& Exploration