| | Journal (article/letter/editorial) | crystals, Arkansas also boasts an array of other minerals, as evidenced by this county-by-county description...continued with mining in north ern and western Arkansas and Magnet Cove during the Civil War, and peaked...in full swing and the demand for and price of Arkansas quartz crystals has skyrocketed. In October 1987...exploited. Continued interest in and study of Arkansas minerals, par ticularly the microminerals, will...for their good companionship during my years of Arkansas collecting. Particular thanks goes to these hardcore | | | Book | Collecting Arkansas JVlinerals A Reference and Guide By Arthur E. Smith, Jr. ,'T Collecting Arkansas...Box 2043 Coeur d’Alene, Idaho 83816-2043 iii Arkansas Counties 1 \ I •( 11 o •« c »««ou cxi ju4«iO«J...u L£Z.i I OAUAJ OUACHITA S CAI.MOW* (QAAOIC V. lCI 1 s I H C-ohaoCI--------------- J—, I rniuifl... l 5 I •*OOOAUC» /4<*.K«C«] AOl« -4 I T V Sf 84ir.4«] vs*l*fl ^ l C«*IC«U0 l*0t»0«0t*0...s to*c I jQ*<*ZO * r«4M«(.|M^ \ r l w-|U|i V 0«(* 1 I 0«HA r S H X askcct jchicotV I \ | | | Report (issue) | INTERIOR THOMAS S. KLEPPE, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director First printing 1976 Second...lithium pegmatites: Varutrask, Bikita, and Bernic Lake, by E. Wm. Heinrich, University of Michigan, Ann...Utah, Salt Lake City, Utah, and Carol A. Petersen, Utah Geological and Mineral Survey, Salt Lake City, U...of lithium from seawater, by Meyer Steinberg and V. D. Dang, Brookhaven National Laboratory, Upton, N...Origin of lithium and other components in the Searles Lake evaporites, California, by George I. Smith, U.S | | | Report (issue) | WILLIS QUADRANGLE AND ADJACENT BROWN1 S LAKE AREA, BEAVERHEAD COUNTY, MONTANA A preliminary report by W^...»»*.. «» *»*. « » * 4VJbW 10 WA N/4» W JLfl££*V?V/Ud A WV**£d «»»«*"*»"**«<»«»*«»«»«»«»«««***«»«............. ......-....-.. ....~»......... 15 Intrusive rocks ..~...-......~.........~...~.~........ ...effects - ^ »" » "" -- - 18 jj tJt^Vlv* » U* %*"**"*** V*******"*"***"************""*******"*"*****"**" ***"**********"******...-ivi.-- ^.'", -x^t*! :--«!L ..- - -. --.-* ;^ ^; .v -* r-^ -'. - 1-.' I*h**i f Am ' 'jr--. -,;. *-«-5i^ | | | Book | assistance of my colleagues Dr. D. C. Almond, Mr. S. V. Bell, Professor L. Berry, Dr. I. M. Boushi, Dr. A...Group 36 (iii) Basic intrusive rocks 36 (iv) Awat ‘Series’ or Group 36 (v) Injection granite and...46 47 (a) THE CONTINUATION OF THE ERDI—ENNEDI (v) Sequence proposed by Ruxton (1956) 17 (vi) Basal...OF DONGOLA ETHIOPIAN MARCHES (q) (3) C Member (v) Dungunab Formation (post-Middle Miocene) 101 SOUTHERN...CHERT FORMATION (f) JEBEL MARRA VOLCANIC COMPLEX (v) Regional description: Jebel Uweinat(vi) Regional | | | Book | assistance of my colleagues Dr. D. C. Almond, Mr. S. V. Bell, Professor L. Berry, Dr. I. M. Boushi, Dr. A...Nafirdeib ‘Series’ or Group FEATURES (iii) Basic intrusive rocks (iv) Awat ‘Series’ or Group 2. CLIMATE...GEOLOGICAL JUBAL EL BAHR EL AHMER, MO- SEQUENCE (v) Injection granite and red granite (vi) Acid and basic...Beila and Ban Balos granites (iv) Newer intrusions (v) Sequence proposed by Ruxton (1956) (vi) Basal schists...60 62 CONTENTS Vili (iv) Thickness variations (v) Regional description: Jebel Uweinat— 64 (vi) Regional |
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