Gravity anomalies in Silurian pinnacle reef trend, southwestern Indiana
- 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--
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (USA), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Vol. 73:8; ISSN AABUD; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
Similar Records
Silurian reefs in southwestern Indiana and their relation to petroleum accumulation
Analysis of gravity anomaly over coral-reef oil field: Wilfred Pool, Sullivan County, Indiana
Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
EXPLORATION
FEDERAL REGION V
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC MODELS
GEOLOGIC STRUCTURES
GEOPHYSICAL SURVEYS
GRAVITY SURVEYS
INDIANA
LITHOLOGY
MINERAL RESOURCES
NORTH AMERICA
PALEOZOIC ERA
PETROLEUM DEPOSITS
REEFS
RESOURCES
SEDIMENTARY BASINS
SILURIAN PERIOD
SURVEYS
USA