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Columbia River Basalt Stratigraphy in Oregon

In Cooperation with the Oregon Water Resources Department (OWRD)

Table of Geologic Units for Site CLAC 4488

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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
451904122452501 CLAC 4488 1 0 7 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Clay --
451904122452501 CLAC 4488 2 7 344 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Clay WEATHERED BASALT
451904122452501 CLAC 4488 3 344 351 ELLENSBURG FORMATION Claystone --
451904122452501 CLAC 4488 4 351 396 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
451904122452501 CLAC 4488 5 396 447 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
451904122452501 CLAC 4488 6 447 505 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
451904122452501 CLAC 4488 7 505 566 ORTLEY UNIT OF GRANDE RONDE BASALT Basalt --
451904122452501 CLAC 4488 8 566 611 GRANDE RONDE BASALT OF YAKIMA Basalt --
451904122452501 CLAC 4488 9 611 672 GROUSE CREEK UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
451904122452501 CLAC 4488 10 672 820 GROUSE CREEK UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
451904122452501 CLAC 4488 11 820 865 WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
451904122452501 CLAC 4488 12 865 -- WAPSHILLA RIDGE UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
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Page Last Modified: Wednesday, 09-Jan-2013 18:43:53 EST