Geochemical characteristics of the Jinjiazhuang ultrabasic rock-type gold deposit in Chicheng County, Hebei Province

2000 ◽  
Vol 19 (3) ◽  
pp. 243-249
Author(s):  
Hongyang Li ◽  
Zhusen Yang ◽  
Zhenju Ding ◽  
Taiyi Luo ◽  
Zhenmin Gao
Keyword(s):  
Gold Deposit ◽  
Rock Type ◽  
Ultrabasic Rock ◽  
Hebei Province ◽  
Geochemical Characteristics

XXII.—The Petrology of Picritic Rocks in Minor Intrusions—a Hebridean Group

1959 ◽  
Vol 63 (3) ◽  
pp. 459-499 ◽  
Author(s):  
H. I. Drever ◽  
R. Johnston
Keyword(s):  
Source Rock ◽  
Rock Type ◽  
Basaltic Magma ◽  
Ultrabasic Rock ◽  
Working Hypothesis ◽  
Selective Fusion ◽  
Rich Liquid ◽  
Factual Data

SynopsisThe results are presented of a detailed petrological reconnaissance of a group of picritic minor intrusions in the Hebrides. A substantial amount of new factual data is subjected to a unified treatment as a basis for reference and discussion. Olivine phenocrysts are not appreciably zoned and there is no evidence that they have a reaction relation with the liquid represented by the groundmass. Variations in the size and amount of olivine in individual intrusions are examined in detail and attributed to composite intrusion of differentiated material. A distinctive non-porphyritic facies found in several sills and in one dyke is chemically analyzed. Four analyses from widely separated localities establish this facies as a remarkably invariant, eucritic rock-type. The composition of the groundmass of the picritic rocks is variable and there is no evidence whatever of the participation of basaltic magma in their formation. Although no attempt is made to explain the new data in detail, a comprehensive working hypothesis is formulated. The origin of such picritic intrusions is believed to be due to selective fusion of pre-existing ultrabasic rock. Liquid more basic than normal basalt magmas can be formed by this process. Some re-precipitation of olivine may have preceded final emplacement of a magnesia-rich liquid which contained xenocrysts, mainly of olivine, from the source rock.

The Geochemical Characteristics and the Genesis of the Nachitai Gold Deposit

2014 ◽  
Vol 88 (s2) ◽  
pp. 747-748
Author(s):  
Changshan LI ◽  
Cuihua CHEN ◽  
Zonglin TU
Keyword(s):  
Gold Deposit ◽  
Geochemical Characteristics

scholarly journals Geological and geochemical characteristics and genesis of the Cishan gold deposit in Tongling ore cluster area, Anhui Province

2020 ◽  
Vol 5 (3) ◽  
pp. 182-201
Author(s):  
Shasha Liu ◽  
Xiaoyong Yang ◽  
Linjie Chen ◽  
Yinan Li ◽  
Kai Zheng ◽  
...  
Keyword(s):  
Gold Deposit ◽  
Anhui Province ◽  
Geochemical Characteristics ◽  
Cluster Area

Significance of zircon trace element geochemistry, the Shihu gold deposit, western Hebei Province, North China

2011 ◽  
Vol 29 (3) ◽  
pp. 277-286 ◽  
Author(s):  
Ye CAO ◽  
Shengrong LI ◽  
Huafeng ZHANG ◽  
Xiaobin LIU ◽  
Zhenzhen LI ◽  
...  
Keyword(s):  
Trace Element ◽  
Gold Deposit ◽  
North China ◽  
Hebei Province ◽  
Trace Element Geochemistry ◽  
Element Geochemistry

Geochemical Characteristics of the Zhesang Gold Deposit in Funing, Yunnan Province

2014 ◽  
Vol 88 (s2) ◽  
pp. 704-705
Author(s):  
Hongzhang DAI ◽  
Cuihua CHEN ◽  
Jiajun LIU ◽  
Yan ZHANG
Keyword(s):  
Gold Deposit ◽  
Yunnan Province ◽  
Geochemical Characteristics
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