@article{fdi:010057099,
  title = {{M}esozoic arc magmatism along the southern {P}eruvian margin during {G}ondwana breakup and dispersal},
  author = {{B}oekhout, {F}. and {S}pikings, {R}. and {S}emp{\'e}r{\'e}, {T}hierry and {C}hiaradia, {M}. and {U}lianov, {A}. and {S}chaltegger, {U}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} high-resolution {U}-{P}b zircon geochronological study of plutonic units along the south {P}eruvian margin between 17 degrees and 18 degrees {S} allows the integration of the geochemical, geodynamic and tectonic evolution of this part of the {A}ndean margin. {T}his study focuses on the composite {J}urassic-early {C}retaceous {I}lo {B}atholith that was emplaced along the southern {P}eruvian coast during two episodes of intrusive magmatism; a first period between 173 and 152 {M}a (with a peak in magmatic activity between roughly 168 and 162 {M}a) and a second period between 110 and 106 {M}a. {E}mplacement of the {J}urassic part of the composite {I}lo {B}atholith shortly post-dated the accumulation of the volcanosedimentary succession it intruded ({C}hocolate formation), which allows to estimate a subsidence rate for this unit of similar to 3.5 km/{M}a. {T}he emplacement of the main peak of {J}urassic plutonism of the {I}lo {B}atholith was also closely coeval with widespread and repeated slumping (during deposition of the {C}achios {F}ormation) in the back-arc region, suggesting a common causal link between these phenomena, which is discussed in the context of an observed 100 km trenchward arc migration at similar to 175 {M}a, and the relation with extensional tectonics that prevailed along the {C}entral {A}ndean margin during {P}angaea break-up.},
  keywords = {{P}eru ; {Z}ircon ; {J}urassic ; {B}atholith ; {S}ubduction ; {E}xtension},
  booktitle = {},
  journal = {{L}ithos},
  volume = {146},
  numero = {},
  pages = {48--64},
  ISSN = {0024-4937},
  year = {2012},
  DOI = {10.1016/j.lithos.2012.04.015},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057099},
}