Reference
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Title: |
Report on Referred Fossils
,
1985
(03/18)
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REFERENCE CITED Lane, H. R., Sandberg, C.A., and Ziegler, Willi, 1980, Taxonomy and phylogeny of some Lower Carboniferous conodonts and preliminary standard post-SIPHONODELLA zonation: Geologica et Palaeontologica, v. 14, p. 117-164. |
Report by: |
Anita G. Harris
,
R. T. Lierman
,
Katharine S. Schindler
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Referred by: |
William W. Patton
, Jr.
,
Irv L. Tailleur
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| Age: | Famennian-Osagean |
Formation: | Kogruk Formation |
CAI: | Min: 5 - Max: 5.5 (CAI=5-5.5 indicating host rock reached at least 300 to 350 deg. C. This is the regional thermal level in this area and provides no definitive information about the age of the Shishakshinovik pluton.) |
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Comment: | 8.51 kg of rock was processed (0 g of +20 mesh and 2 kg of 20-200 mesh insoluble residue); sample only partly picked. This is a rather shallow-water species association indicative of the very latest Famennian through early Osagean, but probably no younger than Kinderhookian. Age: very latest Devonian-early Early Mississippian (very latest Famennian-early Osagean) CAI=5-5.5 indicating host rock reached at least 300 to 350o C. This is the regional thermal level in this area and provides no definitive information about the age of the Shishakshinovik pluton. |
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