TY - JOUR
T1 - Pedogenic development at the Cretaceous-Tertiary boundary, Garfield County, Montana
AU - Fastovsky, D. E.
AU - McSweeney, Kevin
AU - Norton, L. D.
PY - 1989
Y1 - 1989
N2 - The fabric, mineralogy, and geochemistry of a 0.5-1.5 cm-thick claystone parting indicate that certain of its features are the result of contemporaneous pedogenesis, a diastem (i.e., micro-disconformity) between the 2:1 and 1:1 claystone layers. The temporal separation between these two layers, indicated by the contrast in the nature and arrangement of pedogenic features as well as by the textural, mineralogical, and geochemical distinctness of the two layers, militates against the two layers of the parting resulting from the same event. In this respect, our conclusions differ from those of previous workers. -from Authors
AB - The fabric, mineralogy, and geochemistry of a 0.5-1.5 cm-thick claystone parting indicate that certain of its features are the result of contemporaneous pedogenesis, a diastem (i.e., micro-disconformity) between the 2:1 and 1:1 claystone layers. The temporal separation between these two layers, indicated by the contrast in the nature and arrangement of pedogenic features as well as by the textural, mineralogical, and geochemical distinctness of the two layers, militates against the two layers of the parting resulting from the same event. In this respect, our conclusions differ from those of previous workers. -from Authors
UR - http://www.scopus.com/inward/record.url?scp=0024799815&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024799815&partnerID=8YFLogxK
U2 - 10.1306/212F9066-2B24-11D7-8648000102C1865D
DO - 10.1306/212F9066-2B24-11D7-8648000102C1865D
M3 - Article
AN - SCOPUS:0024799815
SN - 0022-4472
VL - 59
SP - 758
EP - 767
JO - Journal of Sedimentary Petrology
JF - Journal of Sedimentary Petrology
IS - 5
ER -