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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 LINN 51763

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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
444704122472801 LINN 51763 1 0.00 47.00 QUATERNARY ALLUVIUM Gravel, Sand, and Clay --
444704122472801 LINN 51763 2 47.00 65.00 SARDINE FORMATION Conglomerate --
444704122472801 LINN 51763 3 65.00 117.00 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW TOP BRECCIA
444704122472801 LINN 51763 4 117.00 149.00 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt --
444704122472801 LINN 51763 5 149.00 152.00 VANTAGE MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Claystone --
444704122472801 LINN 51763 6 152.00 262.00 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt --
444704122472801 LINN 51763 7 262.00 270.00 ELLENSBURG FORMATION Claystone --
444704122472801 LINN 51763 8 270.00 295.00 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
444704122472801 LINN 51763 9 295.00 330.00 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
444704122472801 LINN 51763 10 330.00 387.00 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
444704122472801 LINN 51763 11 387.00 -- NONMARINE SEDIMENTARY ROCKS Sandstone --
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Page Last Modified: Wednesday, 09-Jan-2013 18:44:46 EST