Volume 80 Issue 6 | GSA Bulletin

In this Issue

Role of Cohesive Strength in the Mechanics of Overthrust Faulting and of Landsliding

K. JINGHWA HSU

GSA Bulletin June 01, 1969, Vol.80, 927-952. doi:10.1130/0016-7606(1969)80[927:ROCSIT]2.0.CO;2

Role of Cohesive Strength in the Mechanics of Overthrust Faulting and of Landsliding: Discussion

M. KING HUBBERT; WILLIAM W RUBEY

GSA Bulletin June 01, 1969, Vol.80, 953-954. doi:10.1130/0016-7606(1969)80[953:ROCSIT]2.0.CO;2

Role of Cohesive Strength in the Mechanics of Overthrust Faulting and of Landsliding: Reply

K. JINGHWA HSÜ

GSA Bulletin June 01, 1969, Vol.80, 955-960. doi:10.1130/0016-7606(1969)80[955:ROCSIT]2.0.CO;2

The Caribbean Area: A Case of Destruction and Regeneration of Continent

VLADÍMIR ŠKVOR

GSA Bulletin June 01, 1969, Vol.80, 961-968. doi:10.1130/0016-7606(1969)80[961:TCAACO]2.0.CO;2

Geology and Petrology of the Mt. Hood Area: A Study of High Cascade Volcanism

WILLIAM S WISE

GSA Bulletin June 01, 1969, Vol.80, 969-1006. doi:10.1130/0016-7606(1969)80[969:GAPOTM]2.0.CO;2

Late Paleozoic Glaciation: I, South America

LAWRENCE A FRAKES; JOHN C CROWELL

GSA Bulletin June 01, 1969, Vol.80, 1007-1042. doi:10.1130/0016-7606(1969)80[1007:LPGISA]2.0.CO;2

Glacial Drift in the Eastern Argentine Andes between Latitude 41° 10' S. and Latitude 43° 10' S

RICHARD FOSTER FLINT; FRANCISCO FIDALGO

GSA Bulletin June 01, 1969, Vol.80, 1043-1052. doi:10.1130/0016-7606(1969)80[1043:GDITEA]2.0.CO;2

Polyphase Deformation in the Archean Basement Complex, Beartooth Mountains, Montana and Wyoming

WILLIAM R SKINNER; D. R BOWES; S. G KHOURY

GSA Bulletin June 01, 1969, Vol.80, 1053-1060. doi:10.1130/0016-7606(1969)80[1053:PDITAB]2.0.CO;2

Radial Movements in the Western Wyoming Salient of the Cordilleran Overthrust Belt

GARY W CROSBY

GSA Bulletin June 01, 1969, Vol.80, 1061-1078. doi:10.1130/0016-7606(1969)80[1061:RMITWW]2.0.CO;2

Metasomatic Augen Gneiss in Greenschist Facies, Western Turkey

DAVID M SCOTFORD

GSA Bulletin June 01, 1969, Vol.80, 1079-1094. doi:10.1130/0016-7606(1969)80[1079:MAGIGF]2.0.CO;2

Tectonic Correlations, Klamath Mountains and Western Sierra Nevada, California

GREGORY A DAVIS

GSA Bulletin June 01, 1969, Vol.80, 1095-1108. doi:10.1130/0016-7606(1969)80[1095:TCKMAW]2.0.CO;2

Seismic-Refraction Measurements in Jackson Hole, Wyoming

B. L TIBBETTS; J. C BEHRENDT; J. D LOVE

GSA Bulletin June 01, 1969, Vol.80, 1109-1122. doi:10.1130/0016-7606(1969)80[1109:SMIJHW]2.0.CO;2

Crescentic Marks on a Late Paleozoic Glacial Pavement in Southeastern Brazil

A. C ROCHA-CAMPOS; J.E.S FARJALLAT; R YOSHIDA

GSA Bulletin June 01, 1969, Vol.80, 1123-1126. doi:10.1130/0016-7606(1969)80[1123:CMOALP]2.0.CO;2

Origin of Amphibolites in the Beartooth Mountains, Wyoming and Montana: New Data and Interpretation

P. C VAN DE KAMP

GSA Bulletin June 01, 1969, Vol.80, 1127-1136. doi:10.1130/0016-7606(1969)80[1127:OOAITB]2.0.CO;2

A Fossil Assemblage from the Wicomico Formation in Berkeley County, South Carolina: Discussion

C. WYTHE COOKE

GSA Bulletin June 01, 1969, Vol.80, 1137-1138. doi:10.1130/0016-7606(1969)80[1137:AFAFTW]2.0.CO;2

A Fossil Assemblage from the Wicomico Formation in Berkeley County, South Carolina: Reply

D. J COLQUHOUN

GSA Bulletin June 01, 1969, Vol.80, 1139-1140. doi:10.1130/0016-7606(1969)80[1139:AFAFTW]2.0.CO;2

Origin of the “Welded Chert,” Morrison Formation (Jurassic), Colorado

ROBERT J KING; DANIEL F MERRIAM

GSA Bulletin June 01, 1969, Vol.80, 1141-1148. doi:10.1130/0016-7606(1969)80[1141:OOTWCM]2.0.CO;2

Miocene Unconformity, Pamlico River Area, North Carolina

CHARLES W WELBY; CARLTON J LEITH

GSA Bulletin June 01, 1969, Vol.80, 1149-1154. doi:10.1130/0016-7606(1969)80[1149:MUPRAN]2.0.CO;2

The Soviet Silurian: Recent Impressions

ARTHUR J BOUCOT

GSA Bulletin June 01, 1969, Vol.80, 1155-1162. doi:10.1130/0016-7606(1969)80[1155:TSSRI]2.0.CO;2

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