【摘要】 南美安第斯带斑岩型铜(金-钼)矿床受板块持续俯冲作用影响,呈线性多条带状分布,以中安第斯段的矿床数量多、分布集中、矿床规模巨大为特征;成矿时代有晚古生代冈瓦纳造山旋回两期和中—新生代安第斯造山旋回4期,以始新世晚期—渐新世和中新世中期—上新世最为重要。更多还原

【Abstract】 This article relies on the"Global Mineral Resources Information System"and related projects of the China Geological Survey. The spatial and temporal distribution characteristics of the porphyry Cu( Au-Mo) deposit in the Andean orogenic belt of South America is summarized: Influenced by the continuous subduction of the plate,the porphyry Cu( Au-Mo) deposit in the Andean belt is linear and multi-banded. It is characterized by a large number of deposits,concentrated distribution and large scale of deposits in the Central Andes section. At the age of mineralization,there were two periods of the Late Paleozoic Gondwana orogenic cycle and and four periods of the Mesozoic-Cenozoic Andean orogenic revolving cycle. The most important is the late Eocene-Oligocene and Miocene mid-Pliocene. It provides a reference for understanding the ore-forming geological characteristics and metallogenic regularity of porphyry deposits in the Andean belt.更多还原