Organic geothermometry of petroleum from Escanaba Trough, offshore northern California
Organic Geochemistry
By: Keith A. Kvenvolden, John B. Rapp, Frances D. Hostettler, J. David, and George E. Claypool
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Abstract
We have measured the extent of hopane and sterane isomerization and of monoaromatic-steroid-hydrocarbon aromatization in a sample of hydrothermally derived petroleum from the Escanaba Trough, a sediment-covered, volcanically active ridge axis. The results, along with kinetic parameters, predict the possible time-temperature history of the petrolum-forming process for this sample. The extent of these reactions is consistent with petroleum formation by intense heating (about 300–350°C) if the time period of this heating was as short as about 100 yr. Such a time scale is reasonable for hydrothermal-discharge events associated with ridge-crest volcanism.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Organic geothermometry of petroleum from Escanaba Trough, offshore northern California |
| Series title | Organic Geochemistry |
| DOI | 10.1016/0146-6380(88)90055-1 |
| Volume | 13 |
| Issue | 1-3 |
| Year Published | 1988 |
| Language | English |
| Publisher | Elsevier |
| Description | 5 p. |
| First page | 351 |
| Last page | 355 |
| Country | United States |
| State | California |
| Other Geospatial | Escanaba Trough, offshore northern California |