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Alice Springs Field

Fri, 2010-04-30 10:52 — dadmin
Feature ID in MGDS: 
AliceSprings
Vent Sites: 
Anemone Heaven
Snail Pits
Activity: 
Temperature
If provided, Maximum temperature in degrees Celsius. If provided, Maximum temperature category distinguishes High (e.g., chimneys, black smokers) vs. Low (e.g., diffuse flow).
Maximum Temperature: 
287
Location
Latitude: 
18.2167
Longitude: 
144.6833
Ocean: 
Region: 
National Jurisdiction: 
Depth (m)
Depth of hydrothermal activity and/or deposits (m below sea level).
Maximum or Single Reported Depth: 
3640
Minimum Depth: 
3595
Tectonic Setting Category: 
Full Spreading Rate (mm/a): 
31.6
Host Rock: 
MORB, minor BABB
Deposit Type: 
PMS, polymetallic massive sulfides
Notes on Vent Field Description: 
small vent fields with active sulfide deposits, low-temperature Fe oxide, barite, and silica chimneys, and associated Fe and Mn deposits on an axial volcano; 287 deg C; at south peak: Anemone Heaven low-temperature site at 18 10'N and Snail Pits high-temperature site at 18 11'N; note: this one listing includes three "fields" identified in Hessler and Lonsdale (1991)
Notes Relevant to Biology: 
hairy gastropods, shrimp, brachyuran crabs, barnacles, polychaetes, limpets; species list in Hessler and Lonsdale (1991)
Year and How Discovered (if active, visual confirmation is listed first): 
1987 submersible Alvin; 1982 plume only
References
[References in brackets not consulted in full by InterRidge Coordinator 2009]
Discovery References (text): 
[Craig, H. et al. (1987) Hydrothermal vents in the Mariana Trough: results of the first Alvin dives. EOS Trans. AGU 68: 1531 (AGU Fall Meeting abstract)].
Other References (text): 
(nearby, but not same location) Natland & Hekinian, HYDROTHERMAL ALTERATION OF BASALTS AND SEDIMENTS AT DEEP SEA DRILLING PROJECT SITE 456, MARIANA TROUGH. Initial Reports of the Deep Sea Drilling Project, 60, 759-768, 1982
RR Hessler and JW Martin (1989) Austinograea williamsi, new genus, new species, a hydrothermal vent crab (Decapoda: Bythograeidae) from the Mariana Back-Arc Basin, western Pacific. J Crust Biol. 9, 645–661
CL Van Dover and B. Fry (1989) Stable isotopic compositions of hydrothermal vent organisms. Mar. Bio. 102(2): 257-263
Hessler and Lonsdale (1991) Biogeography of Mariana Trough hydrothermal vent communities. Deep Sea Research Part A 38: 185-199
T. Gamo et al. (1993) Revisits to the mid-Mariana Trough Hydrothermal Site and discovery of new venting in the southern Mariana Region by the Japanese submersible Shinkai 6500. InterRidge News 2(1):11-14
Gamo, T. et al. (1994) Mariana 1992 Diving Surveys by "Shinkai 6500" JAMSTEC J. Deep-Sea Res. 10: 153-162 (in Japanese with English abstract)
Fryer, Geology of the Mariana Trough, in Backarc Basins: Tectonics and Magmatism, 237-279, 1995
S. Kojima et al. (2001) Phylogeny of Hydrothermal-Vent–Endemic Gastropods Alviniconcha spp. from the Western Pacific Revealed by Mitochondrial DNA Sequences. Biol Bull. 200: 298-304.