{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T13:26:49Z","timestamp":1792157209685,"version":"4.4.0"},"reference-count":29,"publisher":"Geological Society of London","issue":"1","license":[{"start":{"date-parts":[[1998,1,1]],"date-time":"1998-01-01T00:00:00Z","timestamp":883612800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-001"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SP"],"published-print":{"date-parts":[[1998,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>\n            Three contrasting segments of the Mid-Atlantic Ridge (MAR) between the Azores platform and Hayes fracture zones have been studied to determine variations in the magmato-tectonic processes between segment centre and segment ends. Two of the segments (OH1 and OH3) were surveyed with the submersible\n            <jats:italic>Nautile<\/jats:italic>\n            and the third (Lucky Strike or PO1), with high resolution deep-tow side-scan sonar (TOBI). Segment OH1 is a long and robust segment with a wide and shallow axial valley floor. Submersible observations support the inference that this segment is characterized by intense volcanic activity concentrated principally at the segment centre. Segment OH3, with a narrow and deep rift valley, is dominated by tectonic features at the segment centre, whereas the most recent volcanic constructions are found to outcrop in its southern part. Lucky Strike contains a shallow centrally located volcanic platform but tectonic features predominate all along the segment. The only evidence of fresh volcanism are a lava lake and fresh sheet-flows located at the middle and northern part of the platform, respectively. Each of the three segments show \u2018bull\u2019s eye\u2019 gravity lows suggesting a focused mantle diapiric source.\n          <\/jats:p>","DOI":"10.1144\/gsl.sp.1998.148.01.01","type":"journal-article","created":{"date-parts":[[2008,4,30]],"date-time":"2008-04-30T18:28:14Z","timestamp":1209580094000},"page":"1-15","source":"Crossref","is-referenced-by-count":10,"title":["Volcano-tectonic variability along segments of the Mid-Atlantic Ridge between Azores platform and Hayes fracture zone: evidence from submersible and high-resolution sidescan sonar data"],"prefix":"10.1144","volume":"148","author":[{"given":"Eul\u00e0lia","family":"Gr\u00e0cia","sequence":"first","affiliation":[{"name":"Challenger Division for Seafloor Processes, Southampton Oceanography Centre\rEmpress Dock, Southampton SO14 3ZH, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lindsay M.","family":"Parson","sequence":"additional","affiliation":[{"name":"Challenger Division for Seafloor Processes, Southampton Oceanography Centre\rEmpress Dock, Southampton SO14 3ZH, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Bideau","sequence":"additional","affiliation":[{"name":"DRO\/GM, IFREMER-Centre de Brest\rBP 70, 29280 Plouzan\u00e9, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roger","family":"Hekinian","sequence":"additional","affiliation":[{"name":"DRO\/GM, IFREMER-Centre de Brest\rBP 70, 29280 Plouzan\u00e9, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1881","published-online":{"date-parts":[[1999,1,4]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.190.4210.108"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4612-9920-2"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.190.4210.103"},{"issue":"1","key":"e_1_2_1_5_1","first-page":"9","article-title":"Submersible observations of highly contrasted magmatic activities recorded along two segments of the Mid-Atlantic Ridge near 34\u00b052\u2032N and 33\u00b055\u2032N","volume":"5","author":"Bideau D.","year":"1996","unstructured":"Bideau D., Hekinian R., Bollinger C. , et al. 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Contrasted volcano-tectonic activities at 34\u00b0N and 35\u00b0N on the Mid-Atlantic Ridge: A submersible study Journal of Conference Abstracts 1996b 1 2 756 757","journal-title":"Journal of Conference Abstracts"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1130\/0091-7613(1995)023<0049:TCUEAR>2.3.CO;2"},{"key":"e_1_2_1_8_1","first-page":"380","article-title":"Seawater CH4 concentrations over the Mid-Atlantic Ridge from the Hayes F.Z. to the Azores triple junction","volume":"74","author":"Charlou J. L.","year":"1993","unstructured":"Charlou J. L., Bougault H., Donval J. P., Pell\u00e9 H., Langmuir C. Fazar Scientific Party Seawater CH4 concentrations over the Mid-Atlantic Ridge from the Hayes F.Z. to the Azores triple junction EOS Transactions of the American Geophysical Union 1993 74 380","journal-title":"EOS Transactions of the American Geophysical Union"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1029\/JB086iB06p05112"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-246X.1990.tb06579.x"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1029\/94JB02649"},{"issue":"1","key":"e_1_2_1_12_1","first-page":"27","article-title":"Mid-Atlantic Ridge Bull\u2019s Eye experiment: A seismic investigation of segment-scale crustal heterogeneity at a slow spreading ridge","volume":"6","author":"Detrick R. S.","year":"1997","unstructured":"Detrick R. S., Collins J., Kent G. , et al. 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Multidisciplinary investigations of hydrothermal vents on Lucky Strike seamount and the tectonic and volcanic structure of the Mid-Atlantic Ridge Rift Valley between 37\u00b010\u2032-25\u2032N: Near bottom studies using the DSL-120 kHz sonar, ARGO II and ROV Jason 1996 41 Woods Hole Oceanographic Institution Technical Report"},{"key":"e_1_2_1_15_1","first-page":"14","article-title":"A detailed study of the Lucky Strike hydrothermal site and discovery of a new hydrothermal site: Menez Gwen; preliminary results of the DIVA 1 cruise (5\u201329 May, 1994)","volume":"3","author":"Fouquet Y.","year":"1994","unstructured":"Fouquet Y., Charlou J-L., Costa I. , et al. 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