(Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A
During Leg 163, in the Southeast Greenland margin, drilling penetrated a thick succession of volcanic rocks that erupted during breakup of the North Atlantic in the early Tertiary. Samples recovered during Leg 163 supplement the samples recovered during Leg 152 from the transect across the volcanic...
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PANGAEA
1999
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.804646 https://doi.org/10.1594/PANGAEA.804646 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.804646 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
152-917A 163-989A 163-989B 163-990A Aluminium oxide Atomic absorption spectrometry (AAS) Barium Calcium oxide Cerium Chromium Cobalt Copper DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elements total Elevation of event Event label Gallium Greenland Sea Iron oxide Fe2O3 FeO Joides Resolution Lanthanum Latitude of event Lead Leg152 Leg163 Lithologic unit/sequence Longitude of event Magnesium number Magnesium oxide Manganese oxide Neodymium Nickel Niobium Ocean Drilling Program ODP Phosphorus pentoxide Piece Potassium oxide Rubidium Sample code/label Scandium Silicon dioxide |
spellingShingle |
152-917A 163-989A 163-989B 163-990A Aluminium oxide Atomic absorption spectrometry (AAS) Barium Calcium oxide Cerium Chromium Cobalt Copper DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elements total Elevation of event Event label Gallium Greenland Sea Iron oxide Fe2O3 FeO Joides Resolution Lanthanum Latitude of event Lead Leg152 Leg163 Lithologic unit/sequence Longitude of event Magnesium number Magnesium oxide Manganese oxide Neodymium Nickel Niobium Ocean Drilling Program ODP Phosphorus pentoxide Piece Potassium oxide Rubidium Sample code/label Scandium Silicon dioxide Larsen, Lotte M Fitton, J Godfrey Saunders, Andrew D (Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A |
topic_facet |
152-917A 163-989A 163-989B 163-990A Aluminium oxide Atomic absorption spectrometry (AAS) Barium Calcium oxide Cerium Chromium Cobalt Copper DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elements total Elevation of event Event label Gallium Greenland Sea Iron oxide Fe2O3 FeO Joides Resolution Lanthanum Latitude of event Lead Leg152 Leg163 Lithologic unit/sequence Longitude of event Magnesium number Magnesium oxide Manganese oxide Neodymium Nickel Niobium Ocean Drilling Program ODP Phosphorus pentoxide Piece Potassium oxide Rubidium Sample code/label Scandium Silicon dioxide |
description |
During Leg 163, in the Southeast Greenland margin, drilling penetrated a thick succession of volcanic rocks that erupted during breakup of the North Atlantic in the early Tertiary. Samples recovered during Leg 163 supplement the samples recovered during Leg 152 from the transect across the volcanic margin at 63°N. During Leg 163, drilling at Site 989 was intended to recover the oldest part of the continental prebreakup series, and drilling at Site 990 was intended to penetrate the transition zone from synbreakup, compositionally variable volcanic products, to postbreakup volcanics with a limited compositional range and a depleted chemical character similar to mid-ocean-ridge basalts (oceanic character). All the lava flows recovered from Sites 989 and 990, however, have an oceanic chemical character with low contents of incompatible elements and high contents of Sc. A dikelet from Site 990 and a previously drilled dike from Site 917 are likewise oceanic. We consider that the two drilled lava flows from Site 989 were emplaced after breakup despite their setting on the innermost part of the continental margin. The succession at Site 990 consists of 13 units of lava flow that show a slight compositional development upsection with Mg# decreasing from ~62 to ~49. This variation is within the limits known from the slightly younger oceanic succession drilled earlier at Site 918, in which the variation is thought to reflect fractionation in magma chambers in the oceanic crust. The reestablishment of magma chambers after the breakup must have been achieved during the interval that the short, undrilled lava succession between uppermost Site 917 and lowermost Site 990 was deposited. All the lava flows from Sites 989 and 990, except perhaps one (Unit 989-1), are crustally contaminated, as judged from their high Ba/Zr (>0.42) ratios. The two dikes appear to be uncontaminated. The contamination most likely took place in magma chambers in the young oceanic rift, which, at this early stage of spreading, could still have ... |
format |
Dataset |
author |
Larsen, Lotte M Fitton, J Godfrey Saunders, Andrew D |
author_facet |
Larsen, Lotte M Fitton, J Godfrey Saunders, Andrew D |
author_sort |
Larsen, Lotte M |
title |
(Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A |
title_short |
(Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A |
title_full |
(Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A |
title_fullStr |
(Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A |
title_full_unstemmed |
(Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A |
title_sort |
(table 1) major and trace element composition of basalts from odp leg 163 sites and hole 152-917a |
publisher |
PANGAEA |
publishDate |
1999 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.804646 https://doi.org/10.1594/PANGAEA.804646 |
op_coverage |
MEDIAN LATITUDE: 63.502375 * MEDIAN LONGITUDE: -39.852900 * SOUTH-BOUND LATITUDE: 63.472800 * WEST-BOUND LONGITUDE: -39.901900 * NORTH-BOUND LATITUDE: 63.522500 * EAST-BOUND LONGITUDE: -39.780000 * DATE/TIME START: 1993-10-10T02:00:00 * DATE/TIME END: 1995-10-01T13:00:00 * MINIMUM DEPTH, sediment/rock: 12.12 m * MAXIMUM DEPTH, sediment/rock: 340.03 m |
long_lat |
ENVELOPE(-39.901900,-39.780000,63.522500,63.472800) |
genre |
Greenland Greenland Sea North Atlantic |
genre_facet |
Greenland Greenland Sea North Atlantic |
op_source |
Supplement to: Larsen, Lotte M; Fitton, J Godfrey; Saunders, Andrew D (1999): Composition of volcanic rocks from the Southeast Greenland margin, Leg 163: major and trace element geochemistry. In: Larsen, HC; Duncan, RA; Allan, JF; Brooks, K (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 163, 1-13, https://doi.org/10.2973/odp.proc.sr.163.109.1999 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.804646 https://doi.org/10.1594/PANGAEA.804646 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.80464610.2973/odp.proc.sr.163.109.1999 |
_version_ |
1810447524670996480 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.804646 2024-09-15T18:09:55+00:00 (Table 1) Major and trace element composition of basalts from ODP Leg 163 sites and Hole 152-917A Larsen, Lotte M Fitton, J Godfrey Saunders, Andrew D MEDIAN LATITUDE: 63.502375 * MEDIAN LONGITUDE: -39.852900 * SOUTH-BOUND LATITUDE: 63.472800 * WEST-BOUND LONGITUDE: -39.901900 * NORTH-BOUND LATITUDE: 63.522500 * EAST-BOUND LONGITUDE: -39.780000 * DATE/TIME START: 1993-10-10T02:00:00 * DATE/TIME END: 1995-10-01T13:00:00 * MINIMUM DEPTH, sediment/rock: 12.12 m * MAXIMUM DEPTH, sediment/rock: 340.03 m 1999 text/tab-separated-values, 1222 data points https://doi.pangaea.de/10.1594/PANGAEA.804646 https://doi.org/10.1594/PANGAEA.804646 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.804646 https://doi.org/10.1594/PANGAEA.804646 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Larsen, Lotte M; Fitton, J Godfrey; Saunders, Andrew D (1999): Composition of volcanic rocks from the Southeast Greenland margin, Leg 163: major and trace element geochemistry. In: Larsen, HC; Duncan, RA; Allan, JF; Brooks, K (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 163, 1-13, https://doi.org/10.2973/odp.proc.sr.163.109.1999 152-917A 163-989A 163-989B 163-990A Aluminium oxide Atomic absorption spectrometry (AAS) Barium Calcium oxide Cerium Chromium Cobalt Copper DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elements total Elevation of event Event label Gallium Greenland Sea Iron oxide Fe2O3 FeO Joides Resolution Lanthanum Latitude of event Lead Leg152 Leg163 Lithologic unit/sequence Longitude of event Magnesium number Magnesium oxide Manganese oxide Neodymium Nickel Niobium Ocean Drilling Program ODP Phosphorus pentoxide Piece Potassium oxide Rubidium Sample code/label Scandium Silicon dioxide dataset 1999 ftpangaea https://doi.org/10.1594/PANGAEA.80464610.2973/odp.proc.sr.163.109.1999 2024-07-24T02:31:32Z During Leg 163, in the Southeast Greenland margin, drilling penetrated a thick succession of volcanic rocks that erupted during breakup of the North Atlantic in the early Tertiary. Samples recovered during Leg 163 supplement the samples recovered during Leg 152 from the transect across the volcanic margin at 63°N. During Leg 163, drilling at Site 989 was intended to recover the oldest part of the continental prebreakup series, and drilling at Site 990 was intended to penetrate the transition zone from synbreakup, compositionally variable volcanic products, to postbreakup volcanics with a limited compositional range and a depleted chemical character similar to mid-ocean-ridge basalts (oceanic character). All the lava flows recovered from Sites 989 and 990, however, have an oceanic chemical character with low contents of incompatible elements and high contents of Sc. A dikelet from Site 990 and a previously drilled dike from Site 917 are likewise oceanic. We consider that the two drilled lava flows from Site 989 were emplaced after breakup despite their setting on the innermost part of the continental margin. The succession at Site 990 consists of 13 units of lava flow that show a slight compositional development upsection with Mg# decreasing from ~62 to ~49. This variation is within the limits known from the slightly younger oceanic succession drilled earlier at Site 918, in which the variation is thought to reflect fractionation in magma chambers in the oceanic crust. The reestablishment of magma chambers after the breakup must have been achieved during the interval that the short, undrilled lava succession between uppermost Site 917 and lowermost Site 990 was deposited. All the lava flows from Sites 989 and 990, except perhaps one (Unit 989-1), are crustally contaminated, as judged from their high Ba/Zr (>0.42) ratios. The two dikes appear to be uncontaminated. The contamination most likely took place in magma chambers in the young oceanic rift, which, at this early stage of spreading, could still have ... Dataset Greenland Greenland Sea North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-39.901900,-39.780000,63.522500,63.472800) |