Tectonic segmentation of the Andes: implications for magmatism and metallogeny

  title={Tectonic segmentation of the Andes: implications for magmatism and metallogeny},
  author={Richard H. Sillitoe},
The Andean orogen consists of a series of tectonic segments separated by transverse boundaries that reflect discontinuities on the underlying subduction zone. The characteristics of belts of magmatic rocks and the type, age and size of ore deposits in a series of longitudinal belts may change at tectonic boundaries. 
Pre-Paleozoic Crustal Tectonics Controlling Paleozoic and Tertiary Metallogenies in the Central Region of Argentina
The region comprises the provinces of Cordoba and San Luis where the crystalline basement crops out. Study of the distribution of tungsten and chalcofile ore deposits identified a 500 km long and 50
Ensialic spreading-subsidence in the Mesozoic and Palaeogene Andes of central Chile
An oceanic plate subducting eastwards below a continental margin and resulting in crustal shortening can be inferred to have been active in central Chile during the Palaeozoic. However, the
Geology and geochemistry of an early Proterozoic volcanic arc sequence at Kristineberg, Skellefte district, Sweden
Abstract In the Kristineberg area, early Proterozoic volcanic rocks underlie a sedimentary sequence, and base-metal massive sulfide deposits are intercalated within the volcanics. The volcanic rocks
The anatomy of a batholith
The Mesozoic-Cenozoic Coastal Batholith of Peru is a multiple intrusion of gabbro, tonalite and granite occupying the core of the Western Cordillera over a length of 1600 km. Its structure and


Plate Tectonics and the Peruvian Andes
We describe and discuss geological evidence which does not accord with simple Plate Tectonic models of the development of the Peruvian Andes.
Metallogeny in Ecuadorian Andes
Disseminated mineralization, polymetallic veins, fracture-fillings and stockworks, stratabound deposits, and residual and alluvial deposits, structural controls, Paleozoic, Jurassic-middle
A Plate Tectonic Model for the Origin of Porphyry Copper Deposits
The theory of lithosphere plate tectonics, embodying the concepts of sea-floor spreading, transform faulting, and underthrusting at continental margins and island arcs, is employed as a basis for an
On Andean structure
The crustal structure of the Andes is discussed on the basis of physiography, orography, seismicity, gravity anomalies, and geologic evolution of Chile. Four tectonic provinces may be defined on the
Metallogenetic epochs and provinces of Bolivia
AbstractPart I. An attempt is made to solve the relationships between tectonism, magmatism and the formation of ore deposits using the Bolivian tin-province as an example. In the eastern Cordillera
Plate Tectonic Model for the Evolution of the Central Andes
Data on the geophysics and geology of the central Andes are interpreted in terms of plate theory and a model for Andean evolution is presented. Analysis of upper mantle structure and seismicity shows
Facts and theories on the Andes
  • A. Gansser
  • Geology
    Journal of the Geological Society
  • 1973
Theories on the relation of oceanic plates with continents frequently use the Andes as a model. Simplified assumptions neglect the fact that only the recent morphogenic uplift made the apparently
Relations of andesites, granites, and derivative sandstones to arc‐Trench tectonics
Andesitic volcanogenic sequences, granitic batholith belts, and derivative graywacke-arkose sedimentary successions are prominent rock assemblages associated with alpinotype peridotite-gabbro belts
The Cenozoic history of the southern Atacama Desert, Chile
  • C. Mortimer
  • Geology
    Journal of the Geological Society
  • 1973
Four episodes of landscape evolution are recognized, each of which has led to the development of a regional erosion surface. The first phase began upon elevation of northern Chile above sea level in