Overview of the Geology of Cuba Overview of the Geology of Cuba

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Presentation transcript:

Overview of the Geology of Cuba Overview of the Geology of Cuba Manuel A. Iturralde-Vinent Cuban Academy of Sciences Manuel A. Iturralde-Vinent Cuban Academy of Sciences

Geological research and cartography in Cuba started in the second half of the XIX Century 1869 FIRST GEOLOGICAL MAP

The origin of the island have been explained according to the theories of Geosyncline, Continental Drift, Oceanization, Tectonic Layering, Earth Expansion, Surge Tectonics and several models of Plate Tectonics.

If alien planetologists ever land on Earth, it will be in Cuba

Main natural resources of the territory

Mineral waters WATER DEPOSITS UNDERGROUND KARSTIC BASINS LIMITED UNDERGROUND WATERS HOT SPRINGS

Gulf of Mexico prospecting area Oil and Gas OIL AND GAS Dense crude oil belt Gulf of Mexico prospecting area

Industrial minerals MARBLES, QUARTZ & QUARTZ SANDS, BARITE, CLAY MINERALS, ZEOLITE, SEMIPRECIOUS MINERALS, CONSTRUCTION MATERIALS, SOIL.

Base Metals

Landscapes

Cuban has a complex geology

With four main tectonic units

The Northern Foldbelt and the Guaniguanico terrane

The stratigraphy of the Northern Foldbelt and Guaniguanico POST OROGENIC FOREDEEP CONTINENTAL MARGIN

Cross section of the Northern Foldbelt

Caribeana metamorphic terranes

Stratigraphy of Caribeana POST OROGENIC SUBDUCTION /EXHUMATION CONTINENTAL MARGIN

Lower Cretaceous paleogeography ´ Caribeana Location of the Caribeana submarine platform

Allochthonous Ophiolites

Camaguey: Ophiolite melange and Ophiolites

The subduction melange: Blocks of HP/LT rocks Some of this rocks are dated as 120 Ma.

The allochthonous volcanic arcs

The cretaceous volcanic arc in central cuba

THE PALEOGENE VOLCANIC ARC

Synorogenic basins NORTHERN FOLDBELT PIGGYBACK BASINS GUANIGUANICO TERRANE PIGGYBACK BASINS

THE STRATIGRAPHY OF THE FOREDEEP IN GUANIGUANICO

mafic-ultramafic rocks SYNOROGENIC BASINS Onto the volcanics and mafic-ultramafic rocks Pg K

Latest Eocene to Recent BASINS UPLIFT

The evolution continues 2008 1941 2009 1955 - 1997 LOST

Earth Science Convention VII International Earth Science Convention April 2017, La Habana www.cubacienciasdelatierra.com

The Caribbean Today (Holocene)

THE SYNOROGENIC BASINS Olistostromes between the volcanics thrust front and the underlying mafic-ultramafic allochthon.

OLISTOSTROME LA PICOTA

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