Transactions of the 2nd GSTT Conference TABLE OF CONTENTS ADDRESS by Mr. Winston Ali, President of the Geological Society of Trinidad and Tobago ................................. 1 INAUGURAL ADDRESS by the Honorable Herbert Atwell, Minister of Energy .................................................. 2 LIST OF DELEGATES ................................................ 3 LIST OF SPONSORS ................................................. 4 LIST OF EXHIBITORS ................................................. 5   STRUCTURE / TECTONICS Structural Development of theNorthern Range of Trinidad, and Implications for the tectonic evolution of the Southeastern Caribbean - Algar, S. T. and Pindell, J.L. .................................................. 6 The role of shearing on the sedimentary and morphostructural evolution of the southern part of the Barbados Ridge, at the latitude of Trinidad - Griboulard, R., Bobier, C., Faugeres, J., Roberts, C. and Vernette, G. (Abstract).............................. 23 The Espino Graben - An Aulacogen? - Persad, K. M. (Abstract)............................ 25 Middle MloceneTectonics and its effects on Late Miocene Sedimentation In Trinidad - Tyson, L., Babb, S. and Dyer, B. ................................................ 26 A preliminary Tectonostratigraphic Framework for Onshore Trinidad - Wielchowsky, C. C., Rahmanian, V. D. and Hardenbold, J. -(Abstract) .............. 41  MIOCENE METAMORPHISM AND NEOGENE TECTONICS OF NORTHERN RANGE ROCKS - R. SPEED, K.A. FOLAND IGNEOUS / METAMORPHIC PETROLOGY & GEOCHEMISTRY The Geochemistry of a Metavolcanic Horizon in the Maracas Formation, Northern Range, Trinidad: Evidence of ocean floor Basalt activity. -Jackson, T. A., Smith, T. E. and Duke M. J. M. .................................... 42 HIGH-PRESSURE METAMORPHISM ALONG THE SOUTHERN MARGIN OF THE CARIBBEAN-WHEN, WHY, AND WHERE? - W.V. MARESCH, B. STOCKHERT, R. KLUGE, G. KROCKHANS,, and A. TOETZ   GEOPHYSICS Applications of seismic exploration techniques in imaging complex geology, Offshore Trinidad: A case History.  Dupigny, A., Elrod, D., Olsen, M., Rango, R. and Wlillams,E. A. (Abstract). ............ 48 A gravity investigation of the Pitch Lake of Trinidad and Tobago.  Chaitan, W and Graterol, V. R. (Abstract) . ..................................... 49 APPLICATION OF VERTICAL SEISMIC PROFIILING TO DEVELOPMENT DRILLING IN THE MOONFIELD, PALO SECO AREA -LINDY PHILLIP  SEDIMENTOLOGY The Effects of Lithified Calcium Carbonate on Tropical Coastal Processes. Black J. A. .................................... 50 A MODEL FOR THE HOLOGENE EVOLUTION OF REEF ENVIRONMENTS IN SOUTHWESTERN TOBAGO DEREK HUDSON  PALEOGEOGRAPHY / STRATIGRAPHY Stratigraphy and Sedimentology of the Toco Region of the Northern Range, N. E. Trlnldad. - Algar, S. T. and Pindell, J.L. ..................................... 56 An Evaluation of Post-Middle Miocene Geological Sequences, Offshore Trinidad - Payne, N. ..................................... 70 Paleogeographic Maps, Maturin Basin of E. Venezuela and Trinidad. - Rohr, G.M. ..................................... 88   ENVIRONMENTAL GEOLOGY The case of the El Pilar Fault System in Trinidad and its Implications for seismic hazard in the S.E. Caribbean. - Rowley, K. and Ambeh, W. (Abstract) .................. 106 Regional Evaluation of Cut-Slope Instability, using statistical methods - Northern Range, Trinidad. - Wharton, S. R. ....................................107 Cut-Slope Instability and associated sub-watershed development - Carenage/Chaguaramas, Trinidad. - Wharton, S. R. ................................... 118 LANDSLIDE HAZARD MAPS- MAPS FOR CRITICAL AREAS IN NORTH, CENTRAL AND SOUTH TRINIDAD - W. T. RAJPAULSINGH   ECONOMIC GEOLOGY Deposition Pattem Analysis: An alternative approach to sand and gravel prospecting in Trinidad and Tobago. - Seegobin, S. ................................... 131   PETROLEUM GEOLOGY & GEOCHEMISTRY An outline of the Geology of Samaan Field, OffshoreTrinidad, West Indies. - Farfan, P. and Bally, Y. ......................................... 139 Migration of oils into Samaan Field, Offshore Trinidad, West Indies. - Heppard, P. D., Ames, R. L. and Ross, L. M. ................................... 157 Exploitation of Trintopec's Mckenzie Field - Case study of geology and field development. - Khan, F (Abstract). ................................... 169 A new framework for hydrocarbon exploration in Trinidad - Lawrence, S. R., Souls A. and V. H Childs. ................................... 170 New data on Trinidad Geochemistry. -Persad, K. M. Talukdar, S. and Dow, W . (Abstract) ................................... 177 AN OVERVIEW OF THE CRETACEOUS GEOLOGIC HISTORY OF TRINIDAD AND IMPLCATIONS FOR HYDROCARBON EXPLORATION - KRISHNA PERSAD & W. ALI QUANTITATIVE ESTIMATES OF TAR/OIL FROM SURFACE TAR/OIL SAND DEPOSITS, TRINIDAD, WEST INDIES - WINSTON T. RAJPAULSINGH   SYMPOSIUM: THE CRETACEOUS OF TRINIDAD & TOBAGO, THE CARIBBEAN & RELATED AREAS The Dasycladalean Algae from the Cretaceous of the New World - Granier, B., Berthou, P. and Fourcade, E. ................................... 178 Cretaceous lntra-Arc Summit Basin on Puerto Rico. Larue, D. K., Pierce, P. and Erickson, J. ................................... 184 The relationship between plate motions and the sedimentary basin development in northern South America: from a Mesozoic passive margin to a Cenozoic eastwardly-progressive transpressional orogen. - Pindell, J. L., Erikson, J. P. and Algar, S. T. ................................... 191 Cretaceous Paleography, Foraminiferal Biostratigraphy and Paleocology of the Belize Basin, Belize. -Ramanathan,R. and Garcia E. ................................... 203 Subsurface Stratigraphy of Cuba based on deep wells. -Sanchez, J., Segura, R., Garcia, R., Echevarria. G., Fernandez, J. and Perera, C. ................................... 212 An Evaluation of the Petrogenesis of the Accreted Mesozoic Island Arc of the Southern Caribbean. - Snoke, A.W. ................................... 222 UPPERMOST CRETACEOUS SEDIMENTATION, TECTONICS AND PALEOGEOGRAPHY OF THE EASTERN SLOPE OF THE PERUVIAN ANDES - RENE MAROCCO GEOLOGICAL HISTORY OF THE DEMERARA RISE GUYANA MARGIN IN CRETACEOUS TIMES  GEOLOGIC HISTORY OF TOBAGO, WEST INDIES -A.W. SNOKE, J.D. YULE, D.W. ROWE, G. WADGE LATE CRETACEOUS UNDERPLATING OF AN OCEANIC PLATEAU AND THE GENESIS OF PALEOCENE PORPHYRY COPPER DEPOSITS ALONG THE SOUTH PERUVIAN MARGIN - PIERRE SOLER POSTER SESSION: Computerization Experience in an Exploration Group. - De la Bastide, A. (Abstract) ................................... 233 Cretaceous Palynology of Venezuela. - Paredes, L S. and Fasola, A. (Abstract) ................................... 234 Landslide Hazard Map. - Rajpaulsingh, W T. (Abstract) ................................... 235   FIELD TRIP GUIDES: Tobago, West Indies: A cross-section across a fragment of the accreted Mesozoic Oceanic-Arc of the Southern Caribbean - Snoke, A. W, Rowe, D. W, Yule, J. D. and Wadge, G. ................................... 236 Structural Styles In Tri++nldad - Ahmad, R. ................................... 244 Cretaceous to Middle Miocene Sediments In Trinidad -L. Tyson ........................ 266 Non-Petroleum Economic Geology of Trinidad: Field guide to selected lndustrial rock and mineral Industries in Trinidad - Bertrand, R. ................................... 278 Home | About Us | Links To The World  |  Publications | Upcoming Events | Feedback | Executive Members | Geology |Teaching Resources| Virtual Field Trip THE GEOLOGICAL SOCIETY OF TRINIDAD & TOBAGO P.O. Box 3524, La Romain, Republic of Trinidad and Tobago, W.I. Comments or Questions?