Transactions of the 8th Caribbean Geological Conference

GEOLOGIE EN MINJBOUW

Journal of the Royal Geological and Mining Society of the Netherlands
Tijdschrift van het Koninklijk Nederlands Geologisch Mijnbouwkundig Genootschap

number 2 JUNE 1978, P 97-384, volume 57

MacGillavry issue

Editor: Dr. A. J. van Loon, Inst. voor Aardwetenschappen, Vrije Universiteit, De Boelelaan 1085, Amsterdam

SPECIAL ISSUE:
THE 8th CARIBBEAN GEOLOGICAL CONFERENCE (WILLEMSTAD, 1977)

Editors of this issue: H. J. MAC GILLAVRY & D. J. BEETS

Contents

Preface H. J. Mac Gillavry & D. J. Beets p. 98

Polyphasic Tertiary tectonics of the interior range in the central part of the Western Caribbean Chain. Guarico State. northern Venezuela C.M. Beck p.99

Seismic investigations in the Colombia, Venezuela and Grenada Basins and on the Barbados Ridge for future IPOD drilling B. Biju-Duval,A. Mascle, L. Montadert & J Wanneson p. 105

Anomalous crust in the Eastern Venezuela Basin and the Bouguer gravity anomaly field of northern Venezuela and the Caribbean borderland W. E. Bonini p. 117

Paleogeografia del Paleogeno de Cuba oriental - K. Brezsnyanszky & M. A. Itturralde-Vinent p. 123

The dispersion of Na. K, Ca and Mg along the footwall of a Pb-Zn ore body. Hope Mine, Jamaica B . E. Carby p. 135

Aspects of the attitude of mafic sheets in the Western Cordillera of Colombia H. De Boorder p.139

Nuevos datos sobre las asociaciones de rudistas en Cuba A. De la Torre, P. Jakus, J.F. Albear p.143

The distribution of igneous rock suites throughout the Caribbean - T. W. Donnelly & J.J.W. Rogers p. 151

Marine lithification of reef rock and rhodolites at a fore reef slope locality (-50m) off Bermuda J. W. Focke & C.D. Gebelein p.163

Desarrollo las facies coralinas desde el Oligoceno hast a el Reciente en la region oriental de Cuba G. L. Franco, E. Nagy &G. Radocz p. 173

Late Pleistocene depsoitional history of Aruba Bonaire and Curacao ( Netherlands Antilles J. P. Herweijer and J. W. Focke p. 177

Notes on the Tertiary stratigraphy of Margarita Island V. F. Hunter p. 189

Foraminiferal correlation of oi 'I'crliary mollusc horizons of thc southern Caribhcan area V. F. Hunter p.193

Los movimientos Tectonicos de la etapa de dcsarrollo plataformico en Cuba M. A. Iturralde-Vinent p. 205

Metasomatism in the Tertiary volcanics of the Wagwater Belt, Jamaica T. A. Jackson .& T. E. Smith p. 213

Reproduction and life cycle of Sorites orsbiculus (Forskal) foraminifer D. Kloos & H. J. Mac Gillavry p. 221

Unconformity between Cretaceous and Eocene rocks in central-western Puerto Rico: a concept rejected R. D. Krushensky p. 227

Pseudorbitoids from the Barguera Limestone. Puerto Rico. and Irom the Back Rio Grande Limestone Jamaica. with remarks on the pscudorbitoidal cvolutionary pattern J. P. Krijnen p. 233

Geology of Ihc northern. central and south-castern Blue Mountains, Jamaica. with a provisional compilation map ot the entire inlier J. P. Krijnen .& A. C. Lee Chin p. 243

Seismic risk and earthquake insurance in South and Central America O. Kulhanek & M. Bath p.251

Active margin structures within the north slope of the Muertos Trench J.W. Ladd and J.S. Watkins p. 255

The central Falcon igneous suite Venezuela: alkaline basaltic intrusions of Oligocene-Miocene age K. W. Muessig p. 261

Caribbean dredge haul compilation: summary and implications - F. Nagle, R.N. Erlich & C. J. Canovi p. 267

Retrograde cataclastic gneiss north of Motagua fault zone, east-central Guatemala . W. E. Newcomb p. 271

Hydrocarbon potential of the Trinidad area -1977 K. Persad p.277

Morphologie et sediments de la plateforme continentale de la Martinique J. C. Pons, C. Julius, A. Klingebiel & M. Pujos p. 287

Sb-Sr evidence for episodic intrusion of the Late Cretaceous tonalitic batholith of Aruba, Netherlands Antilles H. N. A. Priem, D. J. Beets, N. A. I. M. Boelrijk, E. H. Hebeda, E. A. Th. Verdurmen & R. H. Verschure, p. 293

Possible use of tropical peats as fuel: an example from Jamaica E. Robinson p.297

Relacion entre tectonica de placas y geotermalismo en Sucre Central, Venezuela S.E. Rodriguez p. 301

Baritizacion en el compleio Villa de Cura. Estado Aragua. Venezuela Septentrional S.E. Rodriguez p. 305

Stratigraphy of the Chuacus Group on the south side of the Sierra de las Minas range, Guatemala P.J. Roper p. 309

Geochemistry and age of the Tobago igneous rocks K.C. Rowley & J.M. Roobol p. 315

Plate tectonics of the northeastern Caribbean Sea region B.A. Schell and A.C. Tarr p. 319

Uranium-series of Pleistocene marine deposits on the islands of Curacao and La Blanquilla, Caribbean Sea C. Schubert & B. J. Szabo p. 325

Geochemistry of a meromictic brine lake P. Sonnenfeld & P. P. Hudec p. 333

On two species of Titanosarcolites (rudistids) from St. James Parish, NW Jamaica R. J. F. Van der Wal p. 339

Structural geology of the southeastern Blue Mountains, Jamaica G. Wadge & G. Draper p. 347

Ammonites from the Curacao Lava Formation. Curacao, Caribbean J. Wiedmann p. 361

Longshore transport of mud by waves: northeastern coast of South America J. T. Wells & J. M. Coleman p. 353

Preliminary report on the occurrence of Tertiary gold-bearing gravels in Surinam Th. E. Wong & R. V. Van Lissa p. 365

Some notes on the geomorphology of the shelf of St. Eustatius (Netherland Antilles) J.I.S. Zonneveld p. 369

Supplement to the volume of abstracts p.373