Message

*

The Geology of Colombia - SGC

A continuous, long–lived sedimentary record contains important evidence bearing on the geologic evolution of the Eastern Cordillera in the northern Andes of Colombia. Today, this largely isolated NNE–trending mountain range forms a ca. 1–3 km high

MoreOnline Chat

2-6: Medina Anticline, Eastern Cordillera, Colombia ...

01-01-2005  Location: Llanos foothills, Eastern Cordillera, ColombiaTopics: Fault-bend fold, axial-trace map, fold-evolution matricesReserves: Giant fields along trend (e.g

MoreOnline Chat

Mineral Resources of Colombia - USGS

The principal mineral commodities, besides petroleum, produced in Colombia are (1) emeralds, gold, platinum, and silver, mainly for export, and (2) barite, cement, clay, coal, gypsum, salt, sand and gravel, silica, and stone, mainly for the

MoreOnline Chat

List of mining areas in Colombia - Wikipedia

In pre-Columbian times, mining of gold, silver, copper, emeralds, salt, coal and other minerals was already widespread. Precious metals as gold, [2] and silver, [3] platinum, nickel and coltan are located in different areas throughout the country.

MoreOnline Chat

Extensional stresses in the Colombian Eastern Cordillera ...

The basement of Colombia is divisible into three zones separated by major sutures: 1. The Precambrian Guyana shield in the east; 2. The Central Province of Precambrian-early Paleo-zoic metamorphic rocks, which underlies the Central and Eastern Cordilleras; and

MoreOnline Chat

Late Pliocene High-Sulfidation Epithermal Gold ...

Mineral Deposit Research Unit, University of British Columbia, 2020 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4. 2. ... eastern Cordillera of Colombia and

MoreOnline Chat

Mafic magmatism in the Eastern Cordillera and Putumayo ...

The Eastern Cordillera of Colombia is mainly composed of sedimentary rocks deposited since early Mesozoic times. Magmatic rocks are scarce. They are represented only by a few locally restricted occurrences of dykes and sills of mafic composition presumably emplaced in the Cretaceous and of volcanic rocks of Neogene age.

MoreOnline Chat

Mineral industry of Colombia - Wikipedia

Colombia also produces copper, small amounts of iron ore, and bauxite. Nonmetallic mined minerals include salt, limestone, sulfur, gypsum, dolomite, barite, feldspar, clay, magnetite, mica, talcum, and marble. Colombia also produces most of the world's emeralds.

MoreOnline Chat

Subduction system and flat slab beneath the Eastern ...

26-11-2015  The flat Nazca slab extends eastward for about 400 km, before dip increases to ∼50° beneath the Eastern Cordillera, where it yields the Bucaramanga nest. We explain this puzzling locus of intermediate-depth seismicity located beneath the Eastern Cordillera of Colombia as due to a massive dehydration and eclogitization of a thickened oceanic crust.

MoreOnline Chat

The Geology of Colombia - SGC

Migration of Cenozoic deformation in the Eastern Cordillera of Colombia interpreted from fission track results and structural relationships: Implications for petroleum systems. American Association of Petroleum Geologists Bulletin, 94(10): 1543–1580.

MoreOnline Chat

Geology of the Eastern Cordillera of the Andes, Colombia

Geology of the Eastern Cordillera of the Andes, Colombia. February 18 – 26, 2018 . Objective: The purpose of this trip is to investigate the complex tectonic systems of the Eastern Cordillera of the Andes, that resulted in the formation of epithermal gold deposits, hydrothermal emerald deposits, extension-associated diapiric activity, and ...

MoreOnline Chat

Structural Styles of the Eastern Cordillera of Colombia

Keywords: back–arc basin, fault reactivation, gravitational collapse, Eastern Cordillera of Colombia. Resumen La cordillera Oriental de Colombia está encajada entre el flanco inclinado ligeramente al oeste de la cordillera Central, al costado occidental, y el Escudo de Guayana levemente flexionado, al

MoreOnline Chat

Mafic magmatism in the Eastern Cordillera and Putumayo ...

The Eastern Cordillera of Colombia is mainly composed of sedimentary rocks deposited since early Mesozoic times. Magmatic rocks are scarce. They are represented only by a few locally restricted occurrences of dykes and sills of mafic composition presumably emplaced in the Cretaceous and of volcanic rocks of Neogene age.

MoreOnline Chat

Subduction system and flat slab beneath the Eastern ...

26-11-2015  We explain this puzzling locus of intermediate-depth seismicity located beneath the Eastern Cordillera of Colombia as due to a massive dehydration and eclogitization of a thickened oceanic crust. We relate the flat subducting geometry to the entrance at the trench at ca. 10 Ma of a thick - buoyant oceanic crust, likely a volcanic ridge, producing a high coupling with the overriding plate.

MoreOnline Chat

Late Pliocene High-Sulfidation Epithermal Gold ...

Mineral Deposit Research Unit, University of British Columbia, 2020 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4. 2. ... eastern Cordillera of Colombia and

MoreOnline Chat

Cenozoic contractional reactivation of Mesozoic ...

22-04-2006  [1] The Eastern Cordillera of Colombia is key to understanding the role of inherited basement anisotropies in the evolution of active noncollisional mountain belts. In particular, the Rio Blanco–Guatiquía region of the Eastern Cordillera is exemplary in displaying a variety of phenomena that document the importance of the orientation, geometry, and segmentation of preorogenic

MoreOnline Chat

Extensional stresses in the Colombian Eastern Cordillera ...

Cordillera (CC), and Eastern Cordillera (EC). The EC ris-es in southwestern Colombia, with a NE-SW strike, and reaches its maximum width at approximately 6ON (up to 250 km). The Cauca Valley separates the Western and Central Cordilleras, and the Magdalena Valley separates the Central and Eastern Cordilleras. East of the EC is the

MoreOnline Chat

Abstract: Evolution of the Llanos Basin and the ...

ABSTRACT: Evolution of the Llanos Basin and the Deformation of the Eastern Cordillera, Colombia The Llanos Basin is located on the flank of the Eastern Cordillera in northeast Colombia. Basin development commenced with the deposition of a synrift Triassic and Jurassic megasequence related to the separation of North and South America in the Caribbean.

MoreOnline Chat

Frontiers Structural Style and Kinematic History of the ...

01-04-2021  Two balanced cross-sections were constructed in the Eastern Cordillera of Colombia based on detailed maps, surface and well dips, and confidential seismic data. These cross-sections are in the east portion of the Eastern Cordillera, between latitude 5.60°N and

MoreOnline Chat

Geology of the Eastern Cordillera of the Andes, Colombia

Geology of the Eastern Cordillera of the Andes, Colombia. February 18 – 26, 2018 . Objective: The purpose of this trip is to investigate the complex tectonic systems of the Eastern Cordillera of the Andes, that resulted in the formation of epithermal gold deposits, hydrothermal emerald deposits, extension-associated diapiric activity, and ...

MoreOnline Chat

THE PAIPA VOLCANO, EASTERN CORDILLERA OF

01-12-2005  Essential minerals are phenocrysts and glomerocrysts of anorthoclase , sanidine up to 1 ,5 cm and anorthoclase -mantled plagioclase ... Paipa rocks chemical composition confirms that acid and alkaline magmas that have erupted in the Eastern Cordillera of Colombia during the Neogene are strongly different from the calc-alkaline ...

MoreOnline Chat

Structural Styles of the Eastern Cordillera of Colombia

Keywords: back–arc basin, fault reactivation, gravitational collapse, Eastern Cordillera of Colombia. Resumen La cordillera Oriental de Colombia está encajada entre el flanco inclinado ligeramente al oeste de la cordillera Central, al costado occidental, y el Escudo de Guayana levemente flexionado, al

MoreOnline Chat

Late Pliocene High-Sulfidation Epithermal Gold ...

Mineral Deposit Research Unit, University of British Columbia, 2020 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4. 2. ... eastern Cordillera of Colombia and

MoreOnline Chat

Cenozoic contractional reactivation of Mesozoic ...

22-04-2006  [1] The Eastern Cordillera of Colombia is key to understanding the role of inherited basement anisotropies in the evolution of active noncollisional mountain belts. In particular, the Rio Blanco–Guatiquía region of the Eastern Cordillera is exemplary in displaying a variety of phenomena that document the importance of the orientation, geometry, and segmentation of preorogenic

MoreOnline Chat

Paleostress evolution of the northern Andes (Eastern ...

Eastern Cordillera. This regional kinematic and tectonic change, which affected the Caribbean at the end of the Paleocene, was responsible for, and consistent with, the major change in stress patterns and structural style in the Eastern Cordillera. It is also coeval with the development of a major regional unconformity in Colombia. Citation ...

MoreOnline Chat

Frontiers Structural Style and Kinematic History of the ...

01-04-2021  Two balanced cross-sections were constructed in the Eastern Cordillera of Colombia based on detailed maps, surface and well dips, and confidential seismic data. These cross-sections are in the east portion of the Eastern Cordillera, between latitude 5.60°N and

MoreOnline Chat

Phanerozoic Metallogeny in the Colombian Andes: A

Abstract. The Colombian Andes are a highly fertile although little documented metallogenic province. Time-space analysis has identified numerous metallotects containing a wide variety of mineral deposits, framed within five broad metallogenic epochs, defined by important changes in the Phanerozoic tectonic and magmatic evolution of the region.

MoreOnline Chat

minEralEs arCillosos marCadorEs dE proCEsos tErmodinÁmiCos ...

CordillEra oriEntal dE Colombia Clay minErals as thErmodynamiC markErs in lowEr CrEtaCEous mudstonEs in thE rEGion of rÁQuira, boyaCÁ, Colombian EastErn CordillEra Sergio Gaviria1, Gustavo Sarmiento1 Manuel Sánchez2 1 Profesor Asociado PhD, Departamento de Geociencias, Universidad Nacional de Colombia,

MoreOnline Chat

[PDF] Onset of fault reactivation in the Eastern ...

Our results are supported by detailed geological mapping, integrated provenance (petrography, heavy minerals, geochronology) analysis and chronostratigraphical correlation (palynological and geochronology data) of 13 areas with Palaeogene strata across the central segment of the Eastern Cordillera.

MoreOnline Chat

Geology of the Eastern Cordillera of the Andes, Colombia

Geology of the Eastern Cordillera of the Andes, Colombia. February 18 – 26, 2018 . Objective: The purpose of this trip is to investigate the complex tectonic systems of the Eastern Cordillera of the Andes, that resulted in the formation of epithermal gold deposits, hydrothermal emerald deposits, extension-associated diapiric activity, and ...

MoreOnline Chat

THE PAIPA VOLCANO, EASTERN CORDILLERA OF

01-12-2005  Essential minerals are phenocrysts and glomerocrysts of anorthoclase , sanidine up to 1 ,5 cm and anorthoclase -mantled plagioclase ... Paipa rocks chemical composition confirms that acid and alkaline magmas that have erupted in the Eastern Cordillera of Colombia during the Neogene are strongly different from the calc-alkaline ...

MoreOnline Chat

Structural Styles of the Eastern Cordillera of Colombia

Keywords: back–arc basin, fault reactivation, gravitational collapse, Eastern Cordillera of Colombia. Resumen La cordillera Oriental de Colombia está encajada entre el flanco inclinado ligeramente al oeste de la cordillera Central, al costado occidental, y el Escudo de Guayana levemente flexionado, al

MoreOnline Chat

Colombia's Eastern Cordillera - Field Guides

Colombia’s Eastern Cordillera. NEW TOUR! An endemic-filled week-plus of exciting highland birding, with a pre-tour option to visit the eastern llanos. Wild Llanos (optional) ... Surrounded by world-class birding destinations, the vibrant capital of Colombia, Bogota, sits at 8600 feet in the easternmost of Colombia's three Andean ranges.

MoreOnline Chat

Structure of the eastern Cordillera of Colombia ...

01-08-1993  The Bogota fold belt of the Eastern Cordillera, Colombia has long been considered a relatively simple zone of Tertiary-aged folding. To a large degree this picture is due to the presence of a monotonous sequence of turbidites which containes very few distinct formation boundaries useful for delineating the structural geometry.

MoreOnline Chat

Paleostress evolution of the northern Andes (Eastern ...

Eastern Cordillera. This regional kinematic and tectonic change, which affected the Caribbean at the end of the Paleocene, was responsible for, and consistent with, the major change in stress patterns and structural style in the Eastern Cordillera. It is also coeval with the development of a major regional unconformity in Colombia. Citation ...

MoreOnline Chat

What Are The Major Natural Resources Of Colombia? -

20-12-2018  Minerals . Colombia has large quantities of different mineral resources of great economic importance to the country's economy. Some of the essential minerals in Colombia include coal, gold, and nickel. Minerals have been vital to the Colombian economy for a significant period with gold being highly valued by ancient Colombian communities.

MoreOnline Chat

Geology, alteration, mineralization and hydrothermal ...

La Bodega (LB) and La Mascota (LM) deposits (inferred resources in 2010 of 3.47 Moz Au, 19.2 Moz Ag and 84.4 Mlbs Cu at 2 g/t Au cut off) are located in the California-Vetas Mining District, 35 km NE of Bucaramanga, in the Eastern Cordillera of Colombia within the Santander Massif. Mineralization exhibits NE-trending, NW-dipping structural control associated with the right lateral strike-slip ...

MoreOnline Chat

[PDF] Onset of fault reactivation in the Eastern ...

Our results are supported by detailed geological mapping, integrated provenance (petrography, heavy minerals, geochronology) analysis and chronostratigraphical correlation (palynological and geochronology data) of 13 areas with Palaeogene strata across the central segment of the Eastern Cordillera.

MoreOnline Chat

Depósitos de Pórfidos en Colombia_Sector Norte

29-11-2015  Author of this paper made the compilation and investigation about porphyry copper deposits and associated minerals at the north section of western and eastern cordilleras of Colombia. During compilation of information exposed in this paper, it was clear that geologic information of Colombia is in fragments with few compendiums about the diverse and fascinating geology of this country.

MoreOnline Chat

Message