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Oregon Water Science Center

Columbia River Basalt Stratigraphy in Oregon

In Cooperation with the Oregon Water Resources Department (OWRD)

Table of Geologic Units for Site UMAT 55167

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USGS Site ID: Site identification number permanently assigned to the well by the U.S. Geological Survey and recorded in National Water Information System (NWIS), a national computer database maintained by U.S. Geological Survey.

Sequence Number: Sequence number assigned to identify a record.

Depth to Top of Interval: The depth to the top of this unit, in feet below land surface.

Depth to Bottom of Interval: The depth to the bottom of this unit, in feet below land surface. This field should be specified for all units, except the last one in the hole.

Unit code: The name of aquifer or geologic unit stored by the U.S. Geological Survey in National Water Information System (NWIS), a national computer database maintained by U.S. Geological Survey.

Lithology code: The principal lithology of this unit stored by the U.S. Geological Survey in National Water Information System (NWIS), a national computer database maintained by U.S. Geological Survey.

Description of material: The adjective modifier to describe the rock type.

--, no data/unknown.

USGS Site ID Well Log ID Sequence Number Depth to Top of Interval Depth to Bottom of Interval Unit code Lithology code Description of material
455634118253601 UMAT 55167 1 0 10 QUATERNARY ALLUVIUM Sand and Gravel --
455634118253601 UMAT 55167 2 10 58 ALLUVIUM Conglomerate --
455634118253601 UMAT 55167 3 58 120 BASALT OF SENTINEL GAP OF FRENCHMAN SPRINGS MEMBER OF WANAPUM B Basalt FLOW 1
455634118253601 UMAT 55167 4 120 200 BASALT OF SENTINEL GAP OF FRENCHMAN SPRINGS MEMBER OF WANAPUM B Basalt FLOW 2
455634118253601 UMAT 55167 5 200 230 FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 1
455634118253601 UMAT 55167 6 230 344 FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 2
455634118253601 UMAT 55167 7 344 390 FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 3
455634118253601 UMAT 55167 8 390 -- FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 4
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Page Last Modified: Wednesday, 09-Jan-2013 18:49:04 EST