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Home My WebLink AboutGMC Data Report No. 036AMERICAN STRATIGRAPHIC COMPANY ~~,,~,~~~ · ANCHORAGE, ALASI(A 99,.~01 4540 BUSINESS PARK BLVD. ANCHORAGE, ALASKA 99503 MINERAL ANALYSIS February 14, 1977 Mr. John Leverson Division of Oil & Gas State of Alaska 3001 Porcupine Drive Anchorage, Alaska 99504 Dear John' Re: Standard Oil Co. of California #1 Nimiuk I took the liberty of having two small chips of core from the interval 6299- 6305 analyzed by Chemical and Geological Laboratories of Alaska, Inc. These chips were a brown translucent mineral which is associated with the dark dolomites of this core. Test results showed this mineral to be a zinc sulfide containing 56% zinc, 2.1% iron and 20%+ acid insoluble residue which resembled sulfur. Some reations with HCL was noted and was probably from a dolomite portion although sample was not tested for calcium and magnesium. It is my opinion from visual examination and laboratory test that this is an impure sphalerite. Sincerely yours, ' Ronald Brockway / RB/vg AMOCO PRODUCTION COMPANY TulSa, Oklahoma May 25, 1982 82145ARTO127 FILE.: Technical Service 5195SX TO: D.J. Versteeg, Denver SUBJECT: Mineralogy of Core Chips from Alaska State Well Sample Library The attached table summarizes the sem~quantitative mineralogy, determined by X-ray diffraction, of core chips of the Sadlerochit sandstone obtained from the Alaska State Well Sample Library. As indicated in the request for service, we have returned all of the core material to Kick Sherwood in Anchorage via air parcel post. If you have any questions about these results, please call me at the Research Center at X3473. J. C. Hoffman JCH'pt Attachment cc: R. R. Thompson/E. R. Michaelis K. W. Sherwood, Anchorage District Office H. D. Winland THESE ESTI~AEES ARE ONLY SE2Z-QUANIlTATIVE. X-RAY DIFFRACTION MINERAL PEhCENTAGES LOCALITY: Alaska FOB.~ATION: Sa,]lerochit sandstone o AGE: Triassic PAGE 1 OF I T.S. NO.' 5195SX CHARGE: 5195 SA ZPLE ID. !~U MBER HUSKY/USGS W.T. FORAN NO. 1 75~0 - 98-T5C' : ' -TRC: ' -T~C: 2: - : - . . - . : :---:---:---:---: ..... HUSKY/USGS DREW Pr. NO.1 :.Q ' F ' C : E : S ' A : G : P : ~ - K : I : C : ~ : M : H ' C : - R : E : A - O : I ' N ' Y - Y ' A ' A : L : H : O : X - A - E : : T : L : L : L : D : H ' P : B : R : O : L : L ' N ' L : L : L - ' Z : D - C ' O ' R : ¥ ' S : T ' I ' L : I ' R : I : R : I ' E : - 7715 : ~2' : - : 3- 5'RC: : .... : : 7722 : 90: : : :TRC:TRC: : .... : : : 779~ - 97' : 5-TRC' 7810 - 89: : : : 5- TRC' HUSKY/USGS ATIGAHU PT. NO. 1 B71~ - 92' : : 8727 : 96' : : ~741 - ~3-IRC: : THC' TRC' : : : 4 - - : - : : : 2-TRC: : : : 9: 6-THC: : : ' : . . - o - . . . :__-: ....... : CHEVHON KAVEABAK PT- NO. 32-25 9149 920~ 9273 - ~8: : : 6: 3-TRC: -TRC:THC: 3' : ' : ' : : - 38: - : : 3'TRC: : - : 7: : : : ' 2' : ..... - : - __:__-:---: .... :---1 .... . . . : 91: : : - 6'~RC: ' : : 3: : : : : : ' ..... - .... : ....... 1-__1___: .... . . CHEVRON SIMPSON LAGOON NO. 32-14 9384 94O7 -lO0: : : -TRC'TRC: : ' 'IGC: : : : ' : : --,---,---,---,---,---,---,---, o . :---: . - . . : - 97: : : :TBC-T~C: : : 'I~C: ' : : ' 3: : . . - : : : ....... ,___,-_-,---,---,---, . - . : 9~18 : 91' : : : 3' ~RC' : : : ~: : : : : 2: : MI,]LEALS FOUND ABE QUARTZ (QR2Z), DOLOJi'£E (DOLO), SIDERITE (SIDR), KAOLINI?E (K~OL), ILLITE {ILLI) kND HALTIE (HALI). ALSO FOUND ~EEE POSSIBLE TRACES (~RC) OF FELDSPAR {FELD), ANHYD~ITE (ANHY), PYRITE (P~'RT), BARITE (3k~I) AND CHLOEI'IE (CHLR).