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Time series analysis of Cenozoic era sea level and paleotemperature data
George H. Rosenfield, Tod E. Huffman
1983, Open-File Report 83-566
A statistical analysis of Cenozoic era sea level and paleotemperature data was performed to determine the cycles of each data set and the correspondence between them. Accordingly, each of the four time series were first analyzed independently in the univariate mode of a spectral analysis. The two basic data sets...
Garnet peridotites from Williams kimberlites, north-central Montana, U.S.A
B.C. Hearn, E. S. McGee
1983, Open-File Report 83-172
Two Williams kimberlites, 250x350m and 37x390m, in the eastern part of a swarm of 30 middle Eocene alnoitic diatremes in north-central Montana, USA, contain xenoliths of garnet-bearing lherzolites, harzburgites and dunites, in addition to spinel peridotites and upper and lower crustal amphibolites and granulites. Colluvial purple, red, and pink garnets...