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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 WERN 14-21

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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
450657122570301 WERN 14-21 1 40 500 TROUTDALE FORMATION Sand and Clay --
450657122570301 WERN 14-21 2 820 1155 TROUTDALE FORMATION Clay --
450657122570301 WERN 14-21 3 1155 1200 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt --
450657122570301 WERN 14-21 4 1200 1280 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt --
450657122570301 WERN 14-21 5 1280 1350 UMTANUM UNIT OF GRANDE RONDE BASALT Basalt --
450657122570301 WERN 14-21 6 1350 1360 ELLENSBURG FORMATION Claystone --
450657122570301 WERN 14-21 7 1360 1475 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt --
450657122570301 WERN 14-21 8 1475 -- MARINE ROCKS,OLDER Claystone --


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Page Last Modified: Wednesday, 09-Jan-2013 18:54:05 EST