| Abstract: | Geophysical surveys in the Wadi Bidah district, in the southwestern part of the Kingdom of Saudi Arabia, have revealed anomalies of the type that may be caused by deposits of massive sulfides. Accordingly, a study was undertaken to investigate the geologic environment associated with the geophysical anomalies and to determine whether mineral exploration of the anomalous areas might be warranted. An extensive geochemical sampling program did not disclose any evidence of ore mineral concentrations in the rocks. Detailed geologic mapping shows the anomalous areas to be underlain by Precambrian carbonaceous graywacke, the outcrop patterns of which closely fit the anomaly patterns. Field evidence and petrologic studies indicate that carbonaceous material in the rocks is the cause of the geophysical anomalies.
Nothing was found in the anomalous areas that suggests the presence of mineral deposits of commercial grade, and further mineral investigations or exploration in the areas is not recommended. |
| Genre: | USGS Numbered Series |
| ProdID: | 9798 |
| Citation Author: | Kiilsgaard, T. H. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 37 p., ill, maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 82-668 |
| Citation Search Results Text: | Geology of areas marked by geophysical anomalies (B-35 and B-34), Wadi Bidah District, Kingdom of Saudi Arabia; 1982; OFR; 82-668; Kiilsgaard, T. H. |
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| Citation Year: | 1982 |
| Type: | citation/reference |
| Text: | Geology of areas marked by geophysical anomalies (B-35 and B-34), Wadi Bidah District, Kingdom of Saudi Arabia; 1982; OFR; 82-668; Kiilsgaard, T. H. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1982/0668/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1982/0668/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
