Link to USGS home page.
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 MARI 57164

Skip to data

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
450419122473601 MARI 57164 1 0 28 WILLAMETTE SILT Silt --
450419122473601 MARI 57164 2 28 213 TROUTDALE FORMATION Clay with some Sand --
450419122473601 MARI 57164 3 213 240 UMTANUM UNIT OF GRANDE RONDE BASALT Basalt --
450419122473601 MARI 57164 4 240 270 BASALT OF SAND HOLLOW OF FRENCHMAN SPRINGS MEMBER OF WANAPUM BA Basalt --
450419122473601 MARI 57164 5 270 353 BASALT OF SILVER FALLS OF FRENCHMAN SPRINGS MEMBER OF WANAPUM B Basalt --
450419122473601 MARI 57164 6 353 357 VANTAGE MEMBER (INFORMAL USAGE) OF ELLENSBURG FORMATION Claystone --
450419122473601 MARI 57164 7 357 409 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 1
450419122473601 MARI 57164 8 409 439 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 2
450419122473601 MARI 57164 9 439 441 ELLENSBURG FORMATION Claystone --
450419122473601 MARI 57164 10 441 509 SENTINEL BLUFFS UNIT OF GRANDE RONDE BASALT Basalt FLOW 3
450419122473601 MARI 57164 11 509 601 WINTER WATER UNIT OF GRANDE RONDE BASALT Basalt --
450419122473601 MARI 57164 12 601 -- UMTANUM UNIT OF GRANDE RONDE BASALT Basalt --
Columbia River Basalt Group Stratigraphy Home Page
Oregon Water Science Center Studies Page
Oregon Water Science Center Home Page

Accessibility FOIA Privacy Policies and Notices

USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://or.water.usgs.gov/projs_dir/crbg/data/wells/mari_57164/mari_57164_geol.html
Page Contact Information: Oregon Webteam
Page Last Modified: Wednesday, 09-Jan-2013 18:45:40 EST