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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 54846

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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
454924119051301 UMAT 54846 1 0 37 PALOUSE FORMATION Loess --
454924119051301 UMAT 54846 2 37 40 ALKALI CANYON FORMATION OF DALLES GROUP Sandstone --
454924119051301 UMAT 54846 3 40 112 UMATILLA MEMBER OF SADDLE MOUNTAINS BASALT Basalt --
454924119051301 UMAT 54846 4 112 118 MABTON MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Claystone --
454924119051301 UMAT 54846 5 118 183 BASALT OF LYONS FERRY OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt --
454924119051301 UMAT 54846 6 183 220 BASALT OF SENTINEL GAP OF FRENCHMAN SPRINGS MEMBER OF WANAPUM B Basalt FLOW 1
454924119051301 UMAT 54846 7 220 250 BASALT OF SENTINEL GAP OF FRENCHMAN SPRINGS MEMBER OF WANAPUM B Basalt FLOW 2
454924119051301 UMAT 54846 8 250 310 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 1
454924119051301 UMAT 54846 9 310 330 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 2
454924119051301 UMAT 54846 10 330 360 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 3
454924119051301 UMAT 54846 11 360 365 ELLENSBURG FORMATION Claystone --
454924119051301 UMAT 54846 12 365 480 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 4
454924119051301 UMAT 54846 13 480 485 ELLENSBURG FORMATION Claystone --
454924119051301 UMAT 54846 14 485 660 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt FLOW 5
454924119051301 UMAT 54846 15 660 665 ELLENSBURG FORMATION Claystone --
454924119051301 UMAT 54846 16 665 725 BASALT OF GINKGO OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BASALT Basalt --
454924119051301 UMAT 54846 17 725 730 VANTAGE MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Claystone --
454924119051301 UMAT 54846 18 730 740 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt --
454924119051301 UMAT 54846 19 740 850 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
454924119051301 UMAT 54846 20 850 910 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
454924119051301 UMAT 54846 21 910 950 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
454924119051301 UMAT 54846 22 950 975 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 4
454924119051301 UMAT 54846 23 975 1090 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 5
454924119051301 UMAT 54846 24 1090 1125 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 6
454924119051301 UMAT 54846 25 1125 -- SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 7
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Page Last Modified: Wednesday, 09-Jan-2013 18:48:56 EST