Tracking deep crustal evolution in porphyry copper systems: preliminary results from whole rock geochemistry and zircon trace elements in the Tres Cerrillos Cu-Mo prospect, Western Cordillera of Ecuador

被引：0

作者：

Carrasco, Hugo ^{[1
]}

Chiaradia, Massimo ^{[1
]}

del Rio, Francesca ^{[1
]}

Aguilar, Angelo ^{[2
]}

Cubelli, Sergio ^{[2
]}

Rodriguez, Carolina ^{[2
]}

Urrutia, Carlos ^{[2
]}

机构：

[1] Univ Geneva, Dept Earth Sci, Rue Maraichers 13, CH-1205 Geneva, Switzerland

[2] Corp Nacl Cobre Chile CODELCO, Huerfanos 1270, Santiago, Chile

来源：

17TH BIENNIAL SGA MEETING, 2023, VOL 1 | 2023年

关键词：

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The Tres Cerrillos prospect is a Miocene porphyry copper system located in the Western Cordillera of Ecuador, which is under an exploration program by EMSAEC (Codelco). Preliminary results from whole rock geochemistry and zircon trace elements of this magmatic-hydrothermal system show that porphyritic and precursor intrusions underwent a deep crustal evolution with suppression of plagioclase, and possibly involving some garnet fractionation in addition to amphibole. Whole rock geochemical proxies (Sr/Y, La/Y, V/Sc and Sr/Zr) and zircon trace elements suggest a fertile magmatic suite for this prospect. Future work will consist of placing mineral chemistry (e.g., zircon and apatite) within the frame of high precision CA-ID-TIMS U-Pb zircon geochronology to refine fertility indicators that can potentially be used as a proxy for metal endowments.

引用

页码：13 / 16

页数：4