Premium
On Metallogenic Conditions and Regularities of the Lower and Middle Reaches of the Changjiang River
Author(s) -
Xiangpei Liu,
Yinfo Chang,
Yenchang Wu
Publication year - 1988
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1988.mp1004007.x
Subject(s) - geology , geochemistry , sequence (biology) , structural basin , volcano , mesozoic , block (permutation group theory) , sichuan basin , series (stratigraphy) , mining engineering , petrology , geomorphology , paleontology , genetics , geometry , mathematics , biology
The paper deals with the metallogenic conditions and regularities of the region of the lower‐middle reaches of the Changjiang River in China. The complicated structural network with the Changjiang (Yangtse) deep fracture as its trunk is the leading rock‐ and ore‐ controlling structure of the metallogenic belt. The high‐potassium granodiorites of the first magmatic sequence of the Mesozoic Yangtse syntexis type and the sodium‐rich diorites of the second sequence are genetically related to the copper ore series and the iron ore series respectively, and occur respectively in the block‐faulted and ‐folded uplift area and the down‐faulted volcanic basin as well as the transitional zone between the two. The ore‐hosting horizons show specific associations of rocks and often contain ore beds basically of stratabound nature.