ML18192B844

Figure 2.1-6, Geologic Map of the Project 4 Study Area

ML18192B844
Person / Time
Site:	Palo Verde
Issue date:	07/11/2018
From:	Arizona Public Service Co
To:	Office of Nuclear Reactor Regulation
References
2.1-6
Download: ML18192B844 (1)

Text

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35 34 Alte Sedimentary deposits Mainly aguvial gravel sand and si hinfluod plains, terraces, fans, and pediwlent cap-pings but locally includes dune sand, Lake deposits, and lanCklide mosses.

Skoum only in areas where they are of appreciable thhfc>wkk or extent Sedimentary deposits Includes Cata Conglomerate and otjwr st~eam and Lake deposits mainly iw zntermontane arena Conktkteofluossly tofirmlyconsoli-dated gravel sand and szyl local cLay gypsum marl lzmesfone dzatomlte and some Jntercalated bukgltflo~s and fehzr tzlffbeck Sedimentary rocks Mgtnty conglomerate sands(one kdtstone limestone, and tuffaceouk beds but Locally i>wtudss volcanic units ranging from rAy-otitw so andes kwin composihon Sedimentary deposits Tps, I'ncludemfossiLtferous alluviul and la-custrine depusitk qfmiddle or early PL(ocene age witkin vaBeys of the present drainage system and correlative conglomerate, sand, siltand clay'aniels Conglomerate oJ Iuest-ern Pi ma County and otker unfosk(L(ferous alluvial conglomerutek thut locally contax>

lavgflows, tuffs, and brecrzas and inter-finger with Tertiary volconw rocks known to be younger than Tms and terrestrial deposits tentatively correlated anth the Ckuska Sandstone or Bidahocjn F'ormation Sedimentary rocks Terrestria conglomerate, <<anCkhme, eiltet>me, h'meetone, tuffaceous beds, and andesitic flows and breccias,inclmhng Locomotive Fangtomerate, Helmet F'onglomerate, Pan-tono Formatfow, an>i Whitetazt Conglouu.>-

ate'nd fokslhferuuk beds in Pima and Yama Countws known Lo be no older tkan late Oligocene or younger tkan liddle Miocene Sedimentary rocks Includes Cloudburst harmattan tn Pznat Ceunty and unnamed. shale kandstowe con glomerate gnd Linwetone unite in southern and wester~ parte of'he State; locally con-tazne volcanic rocks EX PLAN ATION Qb Ql'I

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"'I;I Volcanic rocks Qb, basaltic Jlows, agglomerate, tuJfk, awd cinders distinguished from older b salts by recognizable cinder canes, calderas, and other geomorphw evidence of youtk Qr, rhyolitie flows and tuffrekting Ciscon-furmubly on Qs.

Becognzzed only I'n Yuma County Dikes and plugs Mlrinlybasaltic in compositv>n Dikes and piugg Mmnly andeslh<<

t> bekattzr Jn comyosztzon but includes kol>e rhyulzlir. intrusives in cent>al Fume Co Jnty Voicauic rocks Includek units Jnterfingerzng u>ith QTs and some possibly older units whose debrisik in QTs QTb, basaltic Jlows, agglomerate, tuff, and c'Incer8 Tv Tvg Tvl Tvm Voicauic rocks Flow'8, tuff's, brecciak, and agglomerates inter-flngerlng Jn part wltA Tertzary seCJmen Jary rocks.

Includes some plugs and dikes Tv, rhyolitic to basaltzc rock>>

Tvs, <<Cicic volcan(c rocks Tvl,iuter med(atk volcanic

~ocks Tvm, mafic volcanic rocks Intrusive rocks TKg, granite, quurlz monzonite, grurwdiori>>

quartz C>omte, and somk porpkyry equiva-lents of these reeks TKI,grilnltii;dwri(ic, rhyohtic, und rinilesitic dikes, silL8, and pisa)8 Iu I

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U Kv Kr Sedimentary and voicaui<<rocks Kv, >hgoh'tic to andesitic flow and tuffk Kr, predominaw tly rhyohLic Jlows and tuff l'u, predominantly andeshtc flo'tl>8 and, t gfk Chin)a Formation

'%08 S)nngrump )I(ember mapped separately north of latitude 85'B>'nortA Moenkopi Formation fnchldes Hokkinnini Member of Triassw (I) ggrin Monument Vogey area Kaihah Limestone and Toroweap Formation Coconiuo Sandstone Hermit Shaie Supai Formation Pakoon Limestone (Permiau) and Callviiie Ltmeatoue (Ponnsyivamau) of MENatr (1951) undivided Mzso Iqhgn Mesozoic metamorphic rocks M sc, schist, and pkyllite der'iludfroul Meso-zoic sedi mentary rocks Mlgn, gneiss Mesozoic granite to quartz diorit.e Mesozoic sedimentary rocks Includes limestone, shale, sandstone, und rowglomerute; Locally metouu>rphokrd Mesozoic aud Paieozoic sedimentary rocks undivided Paieozoie sedimentary rocks undivided uj 0

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Sedimentary rocks Ikcludes Upper Missikkiptdan paraCise Formation uf Stouanow (lggk) gnd Hernon (>gksj in extreme soulhrastern Arizonuf Bscabrosa Limestone (Upper ond ho>ocr M(ss(ksippian) gnd Martzn Formahon (Devonian) Jn eluck ofsouthern and central Ariz>ma; Redo>all limestone (Mississippian) anlt Temple Butte Limestone

('Upper? Devonian) in northern Arizonal Modoc Limestone (Lower Mississippianj and Morenct Skulk (Vpper Devonian) in u'sstern Greenlee Colzntyl awd Locally Pennsylvanian hme-stone Sedimentary rocks Includes Louafellou L(mestee (Iower Ordavicmn und Upper Calnbrian) and Corouudo Qug>'tzite (U'p'Per Cambrian) iw. Greenlee County; BL Paso Limestone (Luwer Ordovician), Abrigo Formation (Upper amt Middle Cambriar), and Bolas Quurtzite (Middle Cambrian) in ealtern Corkise County; Ab>igo I'm and Bolku Quartzzte hl wes>erw

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Cruz, Pinal, Gila, and Mgricopa

Counliss, Tonto Crroup (M(ddtk and Ioreer Cambrian) in northern and central Arizonal and Ordomcign(f) and Cambrian Limestone and dolomite in northwestern Mokave Couwty CI 7

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Intrusive rocks PCgr, grgwite, quartz monzonl Le, granodiorite, and quartz diorite.

Locally includes areas of granxtzc rocks, unit other igneous rocks uf post-Paleozozc age PCCI, Ciouite, dh>rite pr>rphgry, and gabbro Grand Canyon Series lncludek Ckuur and Unkar Groups Metaluurphuaed sl.'d>mentary anti voicaulc I'Ocka Mainly pkyllile slate, mica 8chist, cMorite schist. and amphi bohte derived fru >n inte rbedded shale, sgnd-ktlwe, and rhyolitic to basaltic flows and tuffs but local ty includes intrusive rA polite, I io<<>> gabbro and pyroxcnite pCsc,i~eludes Visknu Schist in Grand Cuwtu>w o yazopod Seri'csin rentrai Arizona PI Lahietzn south<<kte>m Arhong, and unnamed sckzstose units gnmsk

~ zncludek some areas of undivided 8oktst and granite 0

0 Normal fault Anticline Thrust fault Sync)inc Mouociine Cinder cone STRUCTURAL SYMBOLS I 0 SCALE IO 20 30 CONTOUR INTERVAL 500 FEET OATUIVI Is MEAN SEA LEVEL 40 50 MILES GEOLOGIC MAP OF THE PROJECT 4

STUDY AREA Figure 2 1-6