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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 WASH 54148

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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
452728122470701 WASH 54148 1 0 35 WILLAMETTE SILT Silt --
452728122470701 WASH 54148 2 35 40 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW TOP
452728122470701 WASH 54148 3 40 73 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW
452728122470701 WASH 54148 4 73 80 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW TOP 1
452728122470701 WASH 54148 5 80 95 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452728122470701 WASH 54148 6 95 101 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FAULT ZONE
452728122470701 WASH 54148 7 101 155.4 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
452728122470701 WASH 54148 8 155.4 -- SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
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Page Last Modified: Wednesday, 09-Jan-2013 18:52:07 EST