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January 16th, 2018

Individual gryphons, Davis-Schrimpf Seep Field, Salton Sea, California

Lat: 33.20070326716746
Lon: 244.42179501054162

The Davis-Schrimpf onshore seep field site in the Salton Sea geothermal system is the result of shallow magmatic intrusions in a sedimentary basin. The SSGS is situated in the Salton Trough in southern California, an area with abundant surface manifestations of hydrothermal activity. The hydrothermal system in the Salton Trough occurs in a pull-apart setting where rifting and associated magmatic intrusions are responsible for the strong heat flow.

One of the most concentrated and well-expressed onshore seep fields is the Davis-Schrimpf field, where more than 50 individual seeps are located in this area. Gas venting from gryphons and pools is vigorous with a continuous bubbling activity. Water and mud mixtures are continuously expelled down the flanks of the gryphons. Carbon dioxide produced from de-volatilization reactions involving sedimentary carbonate is the main driver for the seep activity.

The morphological features of the Davis- Schrimpf seep field are strikingly similar to seep fields on dormant mud volcanoes However, the Davis-Schrimpf seeps are not related to mud volcanism, as mud volcanism normally implies large-scale mud breccia eruptions and a low temperature seep stage.

From the; JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 114, B09201, doi:10.1029/2008JB006247, 2009

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