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Alice Springs Field
MGDS_FeatureID lowest in hierarchy:
Vent Sites:
Ilium
Alice Springs
Burke (contains Anemone Heaven, Snail Pits)
Activity:
Maximum Temperature:
287
Latitude:
18.2103
Longitude:
144.7073
Location on map:
Ocean:
Region:
National Jurisdiction:
Maximum or Single Reported Depth (mbsl):
3640
Minimum Depth (mbsl):
3595
Tectonic setting:
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); 2016 cruise report, ROV SuBastian: Dives S37 at Ilium, S39 at Alice Springs, S40 at Burke; position given for the highest temperature measured on Dive S39 at Alice Springs;
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
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;
FK151121 - Hydrothermal Hunt on the Mariana Back-arc, R/V Falkor, Nov 20 – Dec 17, 2015, Guam to Guam, Chief Scientists: Joseph Resing and William Chadwick, Captain Heiko Volz, https://www.pmel.noaa.gov/eoi/pdfs/FK151121-cruise-report-final.pdf [accessed on: 2019-11-06];
FK161129 - Falkor 2016 Cruise Report Mariana Back-arc, November 29-December 20, 2016, SuBastian Dives S34-S49, Chief Scientist: Dave Butterfield, https://www.pmel.noaa.gov/eoi/marianas/Falkor-2016-FK161129-report-with-logs.pdf [accessed on: 2019-11-06];
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