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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 UMAT 5735

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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
455021119165401 UMAT 5735 1 0 15 SAND AND GRAVEL OF MISSOULA FLOOD DEPOSITS Boulders and Sand --
455021119165401 UMAT 5735 2 15 38 ALKALI CANYON FORMATION OF DALLES GROUP Claystone --
455021119165401 UMAT 5735 3 38 165 POMONA MEMBER OF SADDLE MOUNTAINS BASALT Basalt --
455021119165401 UMAT 5735 4 165 185 SELAH MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Sandstone --
455021119165401 UMAT 5735 5 185 235 UMATILLA MEMBER OF SADDLE MOUNTAINS BASALT Basalt --
455021119165401 UMAT 5735 6 235 250 MABTON MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Claystone --
455021119165401 UMAT 5735 7 250 384 BASALT OF LOLO OF PRIEST RAPIDS MEMBER OF WANAPUM BASALT Basalt --
455021119165401 UMAT 5735 8 384 390 SQUAW CREEK DIATOMITE BED OF ELLENSBURG FORMATION Claystone --
455021119165401 UMAT 5735 9 390 555 BASALT OF SENTINEL GAP OF FRENCHMAN SPRINGS MEMBER OF WANAPUM B Basalt --
455021119165401 UMAT 5735 10 555 590 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 1
455021119165401 UMAT 5735 11 590 848 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 2
455021119165401 UMAT 5735 12 848 870 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 1
455021119165401 UMAT 5735 13 870 880 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 2
455021119165401 UMAT 5735 14 880 910 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 3
455021119165401 UMAT 5735 15 910 925 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 4
455021119165401 UMAT 5735 16 925 945 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt FLOW 5
455021119165401 UMAT 5735 17 945 1065 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
455021119165401 UMAT 5735 18 1065 1150 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
455021119165401 UMAT 5735 19 1150 1151 ELLENSBURG FORMATION Claystone --
455021119165401 UMAT 5735 20 1151 1180 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
455021119165401 UMAT 5735 21 1180 -- SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 4
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Page Last Modified: Wednesday, 09-Jan-2013 18:47:38 EST