ML20213D229

Submits Summary of 800317-21 Visit to Site & to Geological Society of America Meeting in Corvallis,Or.Doe & Licensee Funded Research Generated Much Data on Columbia River Plateau That Needs Integrated

ML20213D229
Person / Time
Site:	Columbia
Issue date:	04/09/1980
From:	Justus P Office of Nuclear Reactor Regulation
To:	Rolonda Jackson Office of Nuclear Reactor Regulation
References
CON-WNP-0298, CON-WNP-298 NUDOCS 8006240873
Download: ML20213D229 (3)

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! ME!;0RAriDUM FOR: Robert E. Jackson,' Chief I

Geosciences Branch, DSS THRU: Leon Reiter, Leader l Geology and Seismology Section l Geosciences Branch, DSS l FROM: Philip Justus, Geologist i Geology and Seismology Section.

i .. Geosciences Branch, DSS-i

SUBJECT:

SumARY OF fiY VISIT TO FAULT EXPOSURES I!! !!ALLULA GAP, UA AREA (WPPSS_2_. PROJECT) Afl0 TO GEOLOGICAL SOCIETY OF Ai: ERICA !'EETI:!G

CORVALLIS, OR.17-21 i'ARCil 1980 . -

! Mar. 17, 7-10 p.m. Pasco, WA. fact with I'r. D. Tillson, UPPSS Chief Geologist and ny guide to the geology of the region, and !'essrs. J. Coughty and J. Imray, both WPPSS geophysical consultants. Olscussed our respective involvements i

with the WPPSS 2 project, the status of geoscientific activity associated with the project, and laid plans for next days trip.

Mar. 18, 7 a.m.-10 p.m. Spent day with 14essrs. Tillson, Doughty, Inray and Un.

Kiel. The latter is a.UPPSS geologist. He visited the following sites, discussed their possible significance.and considered their possible relationship to other

! geological features using available geological maps and cross-sections and magnetic and gravity data compilations: (1) Finley fault in basalts in quarry near Finley, UA; (2) terraces along the Columbia River, UA; (3) Hallula fault zone, truncated spurs, brecciated basalt and angular topography at Hallula Cap,

, WA; (4) Dry Creek fault in basalts in roadcut near Westen, OR; (5) Complexly faulted Touchet sediments with offset clastic dikes in roadcut 1 mi south of -

Umapine, OR; (6) white volcanic ash beds (two) in Touchet sediments with clastic i dikes cross-cutting ash, in roadcut-borrow pit near Touchet, UA.

i Mar. 19, Da.m.-5p.m. Geological Society of America, Cordilleran Section meeting at Corvallis OR. iiet with Mr. D. A. Swanson, USGS volcanologist, at poster session on "tiewly completed geologic map of the Columbia River Basalt Group, l Eastern Washington and florthern Idaho". By prior arrangement he gave ne a l

copy of USGSbBulletin 1457-G, " Revisions ~1n Stratigraphic !!o' enlature of i the Columbia River Basalt Group" and ozalid copics of open-file report 77-100 .

" Reconnaissance Geologic !!ap of the Columbia River Basalt Group, Pullnan-and Walla Walla Quads., SE UA and Adjacent 10," and.open fidi report 79-1303,

" Reconnaissance Geologic !!ap of the Colunbia River Basalt Group in E ',lA and T: 10."

I not and spo'le with Prof. G. Davis, UPPSS geoloqical consultant, on tho' tectonics of W MA. At the wtar e.nukn nenemond h" na one N mil WoM "aalnm!

croup. " Comp 11atjc 1 Geologic f!ap of the Pasco Basin, South :entral UA" I ".:e t

• "h"E . fiscrissed Paserecology witt Rockwell"perrermel- thsers; E;"Pri&;"W +1yers"~~~~-

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nterpretation rUf C5Tur.bla twt'r41ateau tectonics.

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I attended thnso 111ustratMt presentations, abstracts of which are published in " Abstracts with Pro;rac.:s: Geal. Soc. Ancrica, vol. 12, no. 3, Jan.'19E0" R. J. Carson and others, " Earthquake Distributien in Tine and Space."

J. L. Andersen, " Deformation and Canyon Cutting in Post-Grande Ronde,.

Pro-Frencinan Springs Time, Crayback !:tn. SC UA." (3) G. Carter, "Possible Pliocene Inception of Lateral Olsplacement on the Garlock Fault, CA", (4) V.E.-

Camp and P. R. Hooper, " Tectonic Evolution of the SE Part of the Coluabia River Basalt Plateau," (5) S. Reidel and others, "Rato of Defernation in the ,

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Pasco Basin During the fliocene as Detornined by Distribution of Colunbia l River Dasalt Flows." .

l tar. 20, 9a.a.-5p.a. l'ectings in Carvallis.' ileard (G) R. J. Shlenen presenting i

" Late Quaternary Itultiple Buried Paleosois, Vallecitos Valley (Ala cda County),

CA" using data frora CETR trench II; (7) 2. M. Cruko, ""ultipararoter Relative Dating Techniques Used to Differentiate Tills near Wallous Lake, GR." Spont 75-nin. with D. A. Swanson listening to his ideas on Colu:.'bia River Platcau. lie -

is on DOE f;cview Panel and has asked for C0CCRP and very deep drill-hole investigations of the Plateau.

Spent the afternoon listenio9, to the following presentaticns: @) Sd. Farooqui, "Kincaatic. Analysis of the Uallula Fault, Colucbia P1:teau, (9) N. Campbell and R. D. Bentley, " Late Quaternary Faulting, Toppenish Pidsc-SC UA." (10) R. D. Benticy, ar.d others, "Goometry and Tectonic Evolution of the Coltr bia !!111s Anticlice, UA-0R," (11) C. F. Kicnic, and ti. L. !!aaill, " Strike-slip faulting of Post !iiddle Miocene Age in the Blue Mtne of NE OR." (12) G. E. Gehenis and others, "The La':rande Pull-Apart Basin, '1E CR," /13) J. U. McDougall and R. S. Yeats, " Tectonics of the

} Evergreen and Str01cht Creck Faults near Skykoaish in the Central cascades of UA,"

(14) E.11. Price, ' Strain Distribution and Model for For~ation of Eastern thtarua Ridge Anticline, 02, UA," (15) G. i!, Pctrie, "Use of a Computer rodel in the l Safety Assesscent of Suried fluclear Uaste f!cpositories at a liypotht:tical Site in the Colunbia Plateau Basalts," (lG) Post-CMsure Safety Assess:ent of ::uclear Uasto Repositorios in Geologic i4edia," (17) R. C. ::unker, " Catastrophic Floodi:n in i ' Gadger Coulce, SC UA: Facies Palcohydraulics, and Tining," (13) T. Pockwell i

and E. !'eller, " Alluvial Fan Dcforcation Along San Cayetano Fault, Uestern Transverse '

Range, CA" and (19) P.L. Ehlig, " Probable Fliocene Age of High 1.evel 'iarine Terraces,-

,. San Onofre iltn., S. CA." Mostnotableofthoseprescytationswasthedocumentation F

. by way of, slidos of scarps cutting sod and ilolocene C " dates of an apparent tectonic

!, fault.swara (95 surface ruptures) on Toppenish Ridsc.

Hearsay has it that Shell Oil has run seismic lines e. car Pasco Basin and Ucstern Geophysical Corp. is runninq a scisnic line by boat along the Colu:bla River. DGE-

! funded and UPPSS-funded coological and gccphysical research has generated rcch data about the Colu.tia River Plateau that needs to be integrated into a rcro cograhensive tectonic fra.icuork than has been published so far.' -

Philip S. Justus, (color:ist

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