CONTRIBUTION TO THE GEOLOGY OF NORTH-CENTRAL VENEZUELA

Gustavo Feo-Codecido

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

..., graphite, pyrite, chlorite and feldspars in a calcareous to siliceous groundmass. Las Brisas formation The Las Brisas formation was named...

Stratigraphy, Depositional Environments, Age, and Regional Tectonic Significance of the Powwow Member of the Hueco Canyon Formation, Lower Permian of the Hueco Mountains, West Texas

Spencer G. Lucas, Karl Krainer, Daniel Vachard

West Texas Geological Society

..., microfossils (smaller foraminifers, calcareous algae) and biostratigraphy of the Hueco Group, Doña Ana Mountains, southern New Mexico, USA: Rivista...

Integrated Biostratigraphic Zonation for the Malay Basin

Azmi Mohd Yakzan, Awalludin Harun, Bahari Md Nasib, Robert J. Morley

Geological Society of Malaysia (GSM)

... in the basin, with the result that marine microfossils, such as foraminifera, calcareous nannofossils and dinocysts, are rarely present to their full...

Development Of Phylloid-Algal Carbonate Mounds During Regression: Expanding The Build-And-Fill Model

Stephan C. Oborny, Bradley D. Cramer, Philip H. Heckel, Gregory A. Ludvigson, Robert W. Henthorne

Journal of Sedimentary Research (SEPM)

..., 2012, Pennsylvanian (late Carboniferous) calcareous microfossils from Cedro Peak (New Mexico, U.S.A.). Part I: algae and microproblematica: Annales de...

Stratigraphy and Petroleum Prospects of the Labrador Shelf

J. R. H. McWhae, R. Elie, K. C. Laughton, P. R. Gunther

CSPG Bulletin

...-Mesozoic microfossils. Fine-grained basic volcanic rock collected from a small, poorly exposed dike at Ford's Bight was dated by the K-Ar method as 145±6 Ma...

Late Quaternary Turbidite Emplacement on the Horseshoe Abyssal Plain (Iberian Margin)

Susana M. Lebreiro , I. Nicholas McCave , Philip P. E. Weaver

Journal of Sedimentary Research (SEPM)

... of marls (60-20% CaCO3) and clays (< 20% CaCO3). Pelagic/hemipelagic sediments are composed of mainly biogenic calcareous skeletons (foraminifers...

Petrology and Stratigraphy of Nonmarine Upper Jurassic-Lower Cretaceous Rocks of Western Wyoming and Southeastern Idaho

Lloyd C. Furer

AAPG Bulletin

..., R. E., 1956, Rocky Mountain Mesozoic and Cenozoic nonmarine microfossils: Wyoming Geol. Assoc. 11th Ann. Field Conf. Guidebook, p. 95-99. Peck, R. E...

Depositional environment and hydrothermal controls on organic matter enrichment in the lower Cambrian Niutitang shale, southern China

Jingqiang Tan, Zhanghu Wang, Wenhui Wang, Jason Hilton, Jianhua Guo, and Xikai Wang

AAPG Bulletin

... plankton (including algae and other microfossils) (Yang et al., 2008), providing significant OM inputs into marine depositional settings. Figure 2...

Hydrocarbon Systems Analysis of the Northern Gulf of Mexico: Delineation of Hydrocarbon Migration Pathways Using Seeps and Seismic Imaging, by K. C. Hood, L. M. Wenger, O. P. Gross, S.C. Harrison, Search and Discovery Article #40061 (2002)

Search and Discovery.com

Biostratigraphy of Frasnian (Upper Devonian) Strata in Western Canada, Based on Conodonts and Rugose Corals

Ross A. McLean, Gilbert Klapper

CSPG Bulletin

... be useful. Other fossil groups, such as calcareous foraminifera and palynomorphs, have considerable biostratigraphic potential (Marchant and McLean...

The Geochemical and Paleoenvironmental History of the Monterey Formation: Sediments and Hydrocarbons–Data Synthesis and Text: 1985

R. E. Garrison, R. W. Hurst, J. Ingle, M. Kastner

Pacific Section of AAPG

... early by calcareous - siliceous sedimentation in anaerobic - dysaerobic basin floor - slope environments in the lower part, to siliceous detrital-rich...

Depositional Environments, Foremost Formation (Late Cretaceous), Milk River Area, Southern Alberta.

O. Ogunyomi, L. V. Hills

CSPG Bulletin

... the matrix material (<20µm) in most sands. There is an inverse relationship between clay and calcite content of most calcareous samples. In most thin...

Physiography

K. O. Emery, Elazar Uchupi

AAPG Special Volumes

... composition and content of calcareous marine microfossils within the sand that floors the outer parts of the estuaries and lagoons. Similarly, the fact...

Oil Explorations in the Oriente of Ecuador, 1938-1950

H. J. Tschopp

AAPG Bulletin

... limestones and shale intercalations. The thinner limestones are siliceous, dark colored, and grade into marls and hard non-calcareous claystones which...

Endolithic Infestation of Carbonate Substrates Below the Sediment-Water Interface

Jeffrey A. May , Ronald D. Perkins

Journal of Sedimentary Research (SEPM)

.... Malaysia Bull., No. 3, p. 27-51. HORODYSKI, R. J., AND HAAR, S. P., 1975, Recent calcareous stromatolites from Laguna Mormons (Baja Calif.), Mexico...

Petrology and Structure of Some Lower Carboniferous Reefs in Northwestern Ireland

W. Schwarzacher

AAPG Bulletin

... calcareous mud (bahamite) which commonly contains larger mud pebbles. The only organic remains which might have petrological significance are bryozoans...

Sequence-stratigraphic analysis of Jurassic and Cretaceous strata and petroleum exploration in the central and eastern Gulf coastal plain, United States

Ernest A. Mancini, Jamal Obid, Marcello Badali, Kaiyu Liu, William C. Parcell

AAPG Bulletin

..., Cretaceous microfossils of north central Texas, micropaleontology field trip: Geological Society of America 1990 Annual Meeting Guidebook, 48 p.Petty...

Insights Into Marls From Optical and Back-Scattered Electron Petrography: An Example From the Outer Carpathians (Poland)

Katarzyna Górniak

Journal of Sedimentary Research (SEPM)

..., and lithoclasts. Calcareous and siliceous bioclasts, mostly microfossils (foram and sponge spicules, and a few radiolarians and diatoms...

The Steinplatte Reef Complex, Part of an Upper Triassic Carbonate Platform Near Salzburg, Austria

Werner E. Piller

Special Publications of SEPM

... with a diversified organism community of various corals calcareous sponges hydrozoans tabulozoans bryozoans and microproblematica embedded in a micritic...

Mineralogy and Petrology of Black Sea Basin Sediments: Sediments

German Muller, Peter Stoffers

AAPG Special Volumes

... of micritic and microsparitic limestones which in places contain microfossils (biomicrites, Fig. 8-b, e). A Cretaceous or younger age is indicated...

Taphonomy of the Upper Ediacaran Enigmatic Ribbonlike Fossil Shaanxilithes

Mike Meyer, James D. Schiffbauer, Shuhai Xiao, Yaoping Cai, Hong Hua

PALAIOS

... preserved along bedding planes of phosphate-rich silty and calcareous shale, with no evidence of vertical intrusion into adjacent beds and containing...

Geology and Regional Correlation of the Cretaceous and Paleogene Rocks of the Gualala Block, California

Carl M. Wentworth, David L. Jones, Earl E. Brabb

Pacific Section SEPM

.... The Pinehurst was deposited at abyssal depths, for most calcareous microfossils were dissolved; conglomerate and molluscan fossils are absent. Farther east...

New insights into the stratigraphy and petroleum potential of the Baffin shelf's Cretaceous rocks

Brian MacLean, Graham Williams, Shunxin Zhang

CSPG Bulletin

... Natal, South Africa. Palaeontologia Africana, v. 12, p. 1–23. Davey, R.J. 1970. Non-calcareous microplankton from the Cenomanian of England, northern...

Indigenous Precambrian Petroleum?

Grover E. Murray

AAPG Bulletin

... of the Pildara area of West Australia, where calcareous algal structures belonging to Collenia and related genera occur through at least 1,000 feet...

A Special Mechanism for Varve Formation in a Glacial Lake

C. I. Dell

Journal of Sedimentary Research (SEPM)

... the region of gray calcareous tills in the northern part of the basin. During the summer when the sedimentation rate was high, the carbonates were rapidly...