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Home My WebLink AboutGMC Data Report No. 168Vitrinite reflectance data of cuttings (5390' - 14850') from ~he Home Oil Co. Bush Fed No. I well. See GMC Data Report No. 25 ·" -~, ~..<i Total of 14 pages in report Received 27 September 1990 ~ .. ~.:~ ..:..~.~?.:~%!~... . .. :. Al~ka ~ologic Materi~s Center Da~ Report No. 16~ 0 0 t~. I N 0 I X ooooooooooooooooooooooo I 1' t ~ i 1 o 1 o ::'" r' '~ '~ i_... ~ ;';,' O~ tl} o. ...i.:.' oo ~ 0 .. Ji 0 I N O 13. I x i '..I ' 'i J ~) 0 I , · ', .,'. .,. *. ,, · · · .. ·., - t · , .., ., ;, · , . .. ., ,, · . · · ~ ,~ · ,. ~ · · · ~ .? ;7:' · (..~;~. .... ~ .. ~ . ~ · · ~ . ..:~... ". 7.~. .;~. .. ;. ,' .. % · .?'. ; ., ,. , , , I o L.'Z.'Z ,_ IEL.E> ~- :'.5'0 r__-.-~ 0 Li_.m n ! o.. c;,- c;c; o CD Z'~- Z ~',- 0 I N L-T ~ :! ! i o o I c) ~--D. 0 0 ..~ 6 0 D. I N 0 I >- 0 I X '7' 0 -t I o v-F--O o --r- - d "i , ii i:".) L.!" i0 '-" ,,-,,. , I .,? I,.T2TO~ . (Z.':r- ~':-. ~>OE ~" ~. 0 0 0 O. I >- 0 I X 'I ?':i ~..~...~...~ c, .................... ~ ............. I~.L}~Z.~.:..~LZ~.~.LLLq .......................... , .................. --._~ .................. ~., ...................... , ............................ , ........................... , ........ ~1 I~1 Z. 0 0 I 0 13. I >- I X 'I 0- %_1" .o, I <2> ., ....~ ~: r~:, LL. ~ ',1'",',* ~,'"-, or"', · '~" t.-- 0 c} "r' '. ~t-- C,, ,,:':.: ,:.. · . ! o ~ Z',- Z 0 I 0 I 0 ., · : .. · ,,. 0 I .. l...'i United States Department of the Interior O£OLOOICAL SURVEY BOX 25046 M.S.. ,r~O DENVER FEDERAL CENTER DENVER, COLORA~ 80225 L I 17 September, 1990 John Reeder P.O. Box 772116 Eagle River, AK 99577-2116 John: I am returning the prepared samples I borrowed from the state back in January. Enclosed, also, you will find data and histogram sheets for almost all the samples. Some samples did have organic material I deemed good enough to measure. For the most part, the samples were good and the results are evident, at least individually. Taken on a well-by-well basis several were difficult to make good sense out of from an organic petrology point of view. The shape of the histograms is a good general indicator of consistency of the organics contained- ~ithin and in the confidence I had while examining the samples. My technique ~.as.[to measure at leas~. 50.o~ganic.gra!ns,.while..trying ...tq stay within a narrow range,.' ThiS'. becomes di'fficult with 'increased vitrinite'reflectancei and the histogram'.spread, increases. '' With adequate' material and consistent rank (conta~ination'fr°m uphole'cavings can introduce diverse groups of organics) the histogram will 'h~ve 'some kind .of a bell curve shape.. Gaps in the histogram, ~.~:.~,,.. ............ . ,._ ~,...-~ .... -.. ..... .~ ..... ~ ...,¥,.. ....... . ......... ,.. ~... . ...... .~. . ..... , ........ .......... ' ..... '' ,' . .p .,pop ' .... "rg , are..~.i-problem"-and"d~lute~"the * . ~ relatxng-to~ultx le ulatxons ~f o anxcs~ .... ' .... '"- strength of themeanvalueasa good measure of the thersal maturity. These gaps are more couon at the higher ranks,'(> 1.5~ reflectance), but occur at lo,er ranks when insufficient material exists or there is contamination in the sample. " I ad~ittocertain biases'against.samples prepared bypeople'other than myself; and these samples wer~ made by several different companies. I feel I lose too much control over. the processing of the cuttings and donot'have the confidence in other people's dedication to the work. I hope 'these data can be of SORe use to you. If I can help by providing additional informatiOn, please, let Re know. -,"::..: Thank-~ou-~for providing. the Samples,and-'f0r ~odr visiting; GMC Data Report .No. 168 Page.14/14 · . ' -'- .... '.~ -."-- ' .... ~- 'i .5, ..: .-,: .. ~ ...../'....... . :.i.. ' -'.:~i~," ..:'u · ,. ,..~:.. ' '. ..... #210-A; . ' -:7::~. j.... : .. :-. · ,'~.. -,.,".-.. ..... ~- :, .- . ....