ARTICLE AND NOTE:

RICHARD P VON HERZEN, HARTLEY HOSKINS, and TJEERD H VAN ANDEL

Geophysical Studies in the Angola Diapir Field
Geological Society of America Bulletin 1972 v. 83, p. 1901-1910. [Abstract] [PDF]  

PAUL R PINET

Diapirlike Features Offshore Honduras: Implications Regarding Tectonic Evolution of Cayman Trough and Central America
Geological Society of America Bulletin 1972 v. 83, p. 1911-1922. [Abstract] [PDF]  

EDWIN D MCKEE and EDWIN H MCKEE

Pliocene Uplift of the Grand Canyon Region—Time of Drainage Adjustment
Geological Society of America Bulletin 1972 v. 83, p. 1923-1932. [Abstract] [PDF]  

IVO LUCCHITTA

Early History of the Colorado River in the Basin and Range Province
Geological Society of America Bulletin 1972 v. 83, p. 1933-1948. [Abstract] [PDF]  

EDWIN H McKEE and DENNIS B BURKE

Fission-Track Age Bearing on the Permian-Triassic Boundary and Time of the Sonoma Orogeny in North-Central Nevada
Geological Society of America Bulletin 1972 v. 83, p. 1949-1952. [Abstract] [PDF]  

A. J BOUCOT, DOUGLAS BROOKINS, WILLIAM FORBES, and C. V GUIDOTTI

Staurolite Zone Caradoc (Middle-Late Ordovician) Age, Old World Province Brachiopods from Penobscot Bay, Maine
Geological Society of America Bulletin 1972 v. 83, p. 1953-1960. [Abstract] [PDF]  

GRANT HEIKEN

Morphology and Petrography of Volcanic Ashes
Geological Society of America Bulletin 1972 v. 83, p. 1961-1988. [Abstract] [PDF]  

RALPH J ROBERTS

Evolution of the Cordilleran Fold Belt
Geological Society of America Bulletin 1972 v. 83, p. 1989-2004. [Abstract] [PDF]  

O VAN BREEMEN and M. H DODSON

Metamorphic Chronology of the Limpopo Belt, Southern Africa
Geological Society of America Bulletin 1972 v. 83, p. 2005-2018. [Abstract] [PDF]  

D. M CRUDEN and H.A.K CHARLESWORTH

Observations on the Numerical Determination of Axes of Cylindrical and Conical Folds
Geological Society of America Bulletin 1972 v. 83, p. 2019-2024. [Abstract] [PDF]  

R. H GROSHONG, JR.

Strain Calculated from Twinning in Calcite
Geological Society of America Bulletin 1972 v. 83, p. 2025-2038. [Abstract] [PDF]  

W. F RUDDIMAN

Sediment Redistribution on the Reykjanes Ridge: Seismic Evidence
Geological Society of America Bulletin 1972 v. 83, p. 2039-2062. [Abstract] [PDF]  

EDWARD A MANKINEN

Paleomagnetism and Potassium-Argon Ages of the Sonoma Volcanics, California
Geological Society of America Bulletin 1972 v. 83, p. 2063-2072. [Abstract] [PDF]  

ROGER LeB HOOKE

Geomorphic Evidence for Late-Wisconsin and Holocene Tectonic Deformation, Death Valley, California
Geological Society of America Bulletin 1972 v. 83, p. 2073-2098. [Abstract] [PDF]  

THOMAS E YANCEY and JAMES W LEE

Major Heavy Mineral Assemblages and Heavy Mineral Provinces of the Central California Coast Region
Geological Society of America Bulletin 1972 v. 83, p. 2099-2104. [Abstract] [PDF]  

CHAUCER S WANG

Geosynclines in the New Global Tectonics
Geological Society of America Bulletin 1972 v. 83, p. 2105-2110. [Abstract] [PDF]  

THOMAS P MILLER

Potassium-Rich Alkaline Intrusive Rocks of Western Alaska
Geological Society of America Bulletin 1972 v. 83, p. 2111-2128. [Abstract] [PDF]  

DAVID L GILES and TOMMY B THOMPSON

Petrology and Mineralization of a Molybdenum-Bearing Alkalic Stock, Sierra Blanca, New Mexico
Geological Society of America Bulletin 1972 v. 83, p. 2129-2148. [Abstract] [PDF]  

C. McA POWELL

Tectonic Dewatering and Strain in the Michigamme Slate, Michigan
Geological Society of America Bulletin 1972 v. 83, p. 2149-2158. [Abstract] [PDF]  

LON D DRAKE

Mechanisms of Clast Attrition in Basal Till
Geological Society of America Bulletin 1972 v. 83, p. 2159-2166. [Abstract] [PDF]  

JOHN W NEASHAM and CARL F VONDRA

Stratigraphy and Petrology of the Lower Eocene Willwood Formation, Bighorn Basin, Wyoming
Geological Society of America Bulletin 1972 v. 83, p. 2167-2180. [Abstract] [PDF]  

JAMES T TELLER

Significant Multiple Pre-Illinoian Till Exposure in Southeastern Indiana
Geological Society of America Bulletin 1972 v. 83, p. 2181-2187. [Abstract] [PDF]  

JOHN P BLUEMLE

Pleistocene Drainage Development in North Dakota
Geological Society of America Bulletin 1972 v. 83, p. 2189-2193. [Abstract] [PDF]  

DISCUSSION AND REPLY:

ARTHUR D HOWARD

Experimental Studies on the Formation of Lunar Surface Features by Fluidization: Discussion
Geological Society of America Bulletin 1972 v. 83, p. 2195-2196. [Abstract] [PDF]  

S. A SCHUMM

Experimental Studies on the Formation of Lunar Surface Features by Fluidization: Reply
Geological Society of America Bulletin 1972 v. 83, p. 2197-2199. [Abstract] [PDF]  

K NAHA

Structural Geometry and the Time-Relation of Metamorphic Recrystallization to Deformation in the Precambrian Rocks near Simulpal, Eastern India: Discussion
Geological Society of America Bulletin 1972 v. 83, p. 2201-2204. [Abstract] [PDF]  

D MUKHOPADHYAY and S SENGUPTA

Structural Geometry and the Time-Relation of Metamorphic Recrystallization to Deformation in the Precambrian Rocks near Simulpal, Eastern India: Reply
Geological Society of America Bulletin 1972 v. 83, p. 2205-2209. [Abstract] [PDF]  

C. JOHN MANN

Faunal Extinctions and Reversals of the Earth's Magnetic Field: Discussion
Geological Society of America Bulletin 1972 v. 83, p. 2211-2214. [Abstract] [PDF]  

JAMES D HAYS

Faunal Extinctions and Reversals of the Earth's Magnetic Field: Reply
Geological Society of America Bulletin 1972 v. 83, p. 2215-2216. [Abstract] [PDF]  

F. J PHILLIPS

Age and Correlation of the Eocene Ulatisian and Narizian Stages, California: Discussion
Geological Society of America Bulletin 1972 v. 83, p. 2217-2223. [Abstract] [PDF]  

JAMES M GIBSON and P. LEWIS STEINECK

Age and Correlation of the Ulatisian and Narizian Stages, California: Reply
Geological Society of America Bulletin 1972 v. 83, p. 2225-2232. [Abstract] [PDF]  

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