Structure of the Paleoproterozoic Kédougou-Kéniéba Inlier (Senegal-Mali) deduced from gravity and aeromagnetic data

The Kédougou-Kéniéba Inlier (KKI) corresponds to a window through Paleoproterozoic terranes of the West African Craton (WAC). This study presents, first of all, an interpretation of a regional Bouguer gravity map (14°W-9°W, 11°N-16°N) of the...

Accumulation of transition metals and metalloids in sulfidized stromatolites of the 3.48 billion–year–old Dresser Formation, Pilbara Craton

Stromatolites of the ~3.48 billion–year–old Dresser Formation (Pilbara Craton, Western Australia) provide some of the oldest convincing evidence of life on Earth. Here, we augment previous evidence with a detailed investigation of the concentrations and distribution...

A review of Cu-dominant mineral systems in the Kalatag district, East Tianshan, China

The Chinese East Tianshan is the easternmost sector of the Tianshan Mountain Range in the Central Asian Orogenic Belt (CAOB), and accommodates several events of magmatism, crustal growth and mineralization. The Kalatag arc is unique in the East Tianshan due to its widespread Ea...

CET eNews - January 2020

Petrophysics and mineral exploration: a workflow for data analysis and a new interpretation framework

As mineral exploration seeks deeper targets, there will be a greater reliance on geophysical data and a better understanding of the geological meaning of the responses will be required, and...

Dating hypogene iron mineralization events in Archean BIF at Weld Range, Western Australia: insights into the tectonomagmatic history of the northern margin of the Yilgarn Craton

This study is the first to constrain the absolute timing of hypogene iron mineralization in Archean BIF located in the Yilgarn Craton. In situ SHRIMP U–Th–Pb g...

Iron deposits hosted by banded iron-formations in the Yilgarn Craton: Products of sequential iron enrichment by magmatic, marine and meteoric fluids

Mesoarchean Algoma-type BIF in the Yilgarn Craton are locally enriched by secondary processes to iron concentrations approaching 72 wt% Fe. While their near-surface goethite–hematite ores are unequivocally the product of supergene fluid alteration, their deeper magnetite...

Litho structural controls on orogenic gold deposits within the Sandstone greenstone belt Yilgarn Craton Western Australia implications for exploration targeting

 

The 920 square km Archean Sandstone greenstone belt lies in the central-northern part of the Southern Cross Domain of the Youanmi Terrane, Western Australia. The belt, forming an arr...

CET eNews - August 2019

Protracted evolution of the Marañón Valley Au Belt magmatic complex in the Peruvian Andes using zircon oxygen isotopes, Lu-Hf and U-Pb analyses

The Marañón Valley, located in the Eastern Cordillera of the northern Peruvian Andes, represents a 160-km-long section of the continental margin that was mainly active
during the Paleozoic. A combination of whole rock geo-chemistry, and U-Pb, O and Hf isotop...