Geochemistry of basalts from Serocki Volcano
Basalts collected during drilling and diving programs on Serocki Volcano mostly fall within a limited compositional range, and are moderately evolved, normal MORBs with distinctive high MgO contents (averaging 7.60 wt%) and high A1203 concentrations (averaging 16.14 wt% in whole rock samples). Howev...
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1990
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.745318 2023-05-15T17:35:15+02:00 Geochemistry of basalts from Serocki Volcano Humphris, Susan E Bryan, Wilfred B Thompson, Geoffrey Autio, Laurie K MEDIAN LATITUDE: 23.024279 * MEDIAN LONGITUDE: -44.971534 * SOUTH-BOUND LATITUDE: 22.916700 * WEST-BOUND LONGITUDE: -45.045800 * NORTH-BOUND LATITUDE: 23.517000 * EAST-BOUND LONGITUDE: -44.947100 * DATE/TIME START: 1986-04-29T00:00:00 * DATE/TIME END: 1986-06-16T16:15:00 1990-09-17 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.745318 https://doi.org/10.1594/PANGAEA.745318 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.745318 https://doi.org/10.1594/PANGAEA.745318 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Humphris, Susan E; Bryan, Wilfred B; Thompson, Geoffrey; Autio, Laurie K (1990): Morphology, geochemistry, and evolution of Serocki Volcano. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 67-84, https://doi.org/10.2973/odp.proc.sr.106109.124.1990 109-648A 109-648B 109-669A 109-670A Alv_dive_1690 DRILL Drilling/drill rig Joides Resolution Leg109 Mid-Atlantic Ridge North Atlantic Ocean Ocean Drilling Program ODP Serocki Volcano Dataset 1990 ftpangaea https://doi.org/10.1594/PANGAEA.745318 https://doi.org/10.2973/odp.proc.sr.106109.124.1990 2023-01-20T07:31:53Z Basalts collected during drilling and diving programs on Serocki Volcano mostly fall within a limited compositional range, and are moderately evolved, normal MORBs with distinctive high MgO contents (averaging 7.60 wt%) and high A1203 concentrations (averaging 16.14 wt% in whole rock samples). However, samples recovered from within the central crater have lower Ti02 and FeO*/MgO, and higher MgO and Al2O3 concentrations, and are most similar to glasses recovered at Site 649 about 45 km to the north. Comparison of the observed geochemical variations with low-pressure experimental work and other samples from the region suggests that the Serocki Volcano and Site 649 data are compatible with crystal-liquid fractionation involving both olivine and early-stage clinopyroxene, as well as plagioclase, and that the sources may be similar even though Sites 648 and 649 are located in different, but adjacent, spreading cells. Consideration of the stratigraphy and morphology of Serocki Volcano suggests that this feature is more properly described as a megatumulus or lava delta, associated with a steeper, conical peak to the southwest. The evolution of Serocki Volcano involved early construction of a marginal rampart of pillows, followed by doming of this feature and the formation of a perched lava pond. Draining of this pond resulted in collapse and the formation of the central crater. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Conical Peak ENVELOPE(-125.970,-125.970,56.783,56.783) Mid-Atlantic Ridge ENVELOPE(-45.045800,-44.947100,23.517000,22.916700) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
109-648A 109-648B 109-669A 109-670A Alv_dive_1690 DRILL Drilling/drill rig Joides Resolution Leg109 Mid-Atlantic Ridge North Atlantic Ocean Ocean Drilling Program ODP Serocki Volcano |
spellingShingle |
109-648A 109-648B 109-669A 109-670A Alv_dive_1690 DRILL Drilling/drill rig Joides Resolution Leg109 Mid-Atlantic Ridge North Atlantic Ocean Ocean Drilling Program ODP Serocki Volcano Humphris, Susan E Bryan, Wilfred B Thompson, Geoffrey Autio, Laurie K Geochemistry of basalts from Serocki Volcano |
topic_facet |
109-648A 109-648B 109-669A 109-670A Alv_dive_1690 DRILL Drilling/drill rig Joides Resolution Leg109 Mid-Atlantic Ridge North Atlantic Ocean Ocean Drilling Program ODP Serocki Volcano |
description |
Basalts collected during drilling and diving programs on Serocki Volcano mostly fall within a limited compositional range, and are moderately evolved, normal MORBs with distinctive high MgO contents (averaging 7.60 wt%) and high A1203 concentrations (averaging 16.14 wt% in whole rock samples). However, samples recovered from within the central crater have lower Ti02 and FeO*/MgO, and higher MgO and Al2O3 concentrations, and are most similar to glasses recovered at Site 649 about 45 km to the north. Comparison of the observed geochemical variations with low-pressure experimental work and other samples from the region suggests that the Serocki Volcano and Site 649 data are compatible with crystal-liquid fractionation involving both olivine and early-stage clinopyroxene, as well as plagioclase, and that the sources may be similar even though Sites 648 and 649 are located in different, but adjacent, spreading cells. Consideration of the stratigraphy and morphology of Serocki Volcano suggests that this feature is more properly described as a megatumulus or lava delta, associated with a steeper, conical peak to the southwest. The evolution of Serocki Volcano involved early construction of a marginal rampart of pillows, followed by doming of this feature and the formation of a perched lava pond. Draining of this pond resulted in collapse and the formation of the central crater. |
format |
Dataset |
author |
Humphris, Susan E Bryan, Wilfred B Thompson, Geoffrey Autio, Laurie K |
author_facet |
Humphris, Susan E Bryan, Wilfred B Thompson, Geoffrey Autio, Laurie K |
author_sort |
Humphris, Susan E |
title |
Geochemistry of basalts from Serocki Volcano |
title_short |
Geochemistry of basalts from Serocki Volcano |
title_full |
Geochemistry of basalts from Serocki Volcano |
title_fullStr |
Geochemistry of basalts from Serocki Volcano |
title_full_unstemmed |
Geochemistry of basalts from Serocki Volcano |
title_sort |
geochemistry of basalts from serocki volcano |
publisher |
PANGAEA |
publishDate |
1990 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.745318 https://doi.org/10.1594/PANGAEA.745318 |
op_coverage |
MEDIAN LATITUDE: 23.024279 * MEDIAN LONGITUDE: -44.971534 * SOUTH-BOUND LATITUDE: 22.916700 * WEST-BOUND LONGITUDE: -45.045800 * NORTH-BOUND LATITUDE: 23.517000 * EAST-BOUND LONGITUDE: -44.947100 * DATE/TIME START: 1986-04-29T00:00:00 * DATE/TIME END: 1986-06-16T16:15:00 |
long_lat |
ENVELOPE(-125.970,-125.970,56.783,56.783) ENVELOPE(-45.045800,-44.947100,23.517000,22.916700) |
geographic |
Conical Peak Mid-Atlantic Ridge |
geographic_facet |
Conical Peak Mid-Atlantic Ridge |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Humphris, Susan E; Bryan, Wilfred B; Thompson, Geoffrey; Autio, Laurie K (1990): Morphology, geochemistry, and evolution of Serocki Volcano. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 67-84, https://doi.org/10.2973/odp.proc.sr.106109.124.1990 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.745318 https://doi.org/10.1594/PANGAEA.745318 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.745318 https://doi.org/10.2973/odp.proc.sr.106109.124.1990 |
_version_ |
1766134358817636352 |