scholarly journals Diversity of biogenic minerals in low-temperature Si-rich deposits from a newly discovered hydrothermal field on the ultraslow spreading Southwest Indian Ridge

2011 ◽  
Vol 116 (G3) ◽  
Author(s):  
Xiaotong Peng ◽  
Shun Chen ◽  
Huaiyang Zhou ◽  
Lixue Zhang ◽  
Zijun Wu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Indian Ridge

scholarly journals Microbial ecology of the newly discovered serpentinite-hosted Old City hydrothermal field (southwest Indian ridge)

2020 ◽  
Author(s):  
Aurélien Lecoeuvre ◽  
Bénédicte Ménez ◽  
Mathilde Cannat ◽  
Valérie Chavagnac ◽  
Emmanuelle Gérard
Keyword(s):  
Microbial Ecology ◽  
New Caledonia ◽  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Metagenomic Sequencing ◽  
Lost City ◽  
Old City ◽  
Mid Atlantic Ridge ◽  
Indian Ridge ◽  
Geochemical Analyses

Abstract Lost City (mid-Atlantic ridge) is a unique oceanic hydrothermal field where carbonate-brucite chimneys are colonized by a single phylotype of archaeal Methanosarcinales, as well as sulfur- and methane-metabolizing bacteria. So far, only one submarine analog of Lost City has been characterized, the Prony Bay hydrothermal field (New Caledonia), which nonetheless shows more microbiological similarities with ecosystems associated with continental ophiolites. This study presents the microbial ecology of the ‘Lost City’-type Old City hydrothermal field, recently discovered along the southwest Indian ridge. Five carbonate-brucite chimneys were sampled and subjected to mineralogical and geochemical analyses, microimaging, as well as 16S rRNA-encoding gene and metagenomic sequencing. Dominant taxa and metabolisms vary between chimneys, in conjunction with the predicted redox state, while potential formate- and CO-metabolizing microorganisms as well as sulfur-metabolizing bacteria are always abundant. We hypothesize that the variable environmental conditions resulting from the slow and diffuse hydrothermal fluid discharge that currently characterizes Old City could lead to different microbial populations between chimneys that utilize CO and formate differently as carbon or electron sources. Old City discovery and this first description of its microbial ecology opens up attractive perspectives for understanding environmental factors shaping communities and metabolisms in oceanic serpentinite-hosted ecosystems.

Bulk geochemistry, sulfur isotope characteristics of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge

2018 ◽  
Vol 96 ◽  
pp. 13-27 ◽  
Author(s):  
Shili Liao ◽  
Chunhui Tao ◽  
Huaiming Li ◽  
Fernando J.A.S. Barriga ◽  
Jin Liang ◽  
...  
Keyword(s):  
Sulfur Isotope ◽  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Indian Ridge

scholarly journals 230 Th/ 238 U Dating of Sulfide Chimneys in the Longqi‐1 Hydrothermal Field, Southwest Indian Ridge

2019 ◽  
Vol 93 (S2) ◽  
pp. 77-78 ◽  
Author(s):  
Jin LIANG ◽  
Chunhui TAO ◽  
Weifang YANG ◽  
Shili LIAO ◽  
Wei HUANG
Keyword(s):  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Indian Ridge

The deep structure of the Duanqiao hydrothermal field at the Southwest Indian Ridge

2018 ◽  
Vol 37 (3) ◽  
pp. 73-79 ◽  
Author(s):  
Chaofeng Sun ◽  
Zhaocai Wu ◽  
Chunhui Tao ◽  
Aiguo Ruan ◽  
Guoyin Zhang ◽  
...  
Keyword(s):  
Deep Structure ◽  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Indian Ridge

scholarly journals Mineralogical and geochemical features of sulfide chimneys from the 49°39′E hydrothermal field on the Southwest Indian Ridge and their geological inferences

2011 ◽  
Vol 56 (26) ◽  
pp. 2828-2838 ◽  
Author(s):  
ChunHui Tao ◽  
HuaiMing Li ◽  
Wei Huang ◽  
XiQiu Han ◽  
GuangHai Wu ◽  
...  
Keyword(s):  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Indian Ridge

Surface sediment composition and distribution of hydrothermal derived elements at the Duanqiao-1 hydrothermal field, Southwest Indian Ridge

2019 ◽  
Vol 416 ◽  
pp. 105975
Author(s):  
Shili Liao ◽  
Chunhui Tao ◽  
Ágata Alveirinho Dias ◽  
Xin Su ◽  
Zhen Yang ◽  
...  
Keyword(s):  
Surface Sediment ◽  
Southwest Indian Ridge ◽  
Hydrothermal Field ◽  
Sediment Composition ◽  
Indian Ridge
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