Rocks and minerals from the Strakhov Fracture Zone, 4°N Mid-Atlantic Ridge

Geological-geophysical data obtained during Cruises 7, 11, and 12 of R/V Akademic Nikolay Strakhov (1989-1991) within the international project EQUARIDGE in the Strakhov Fracture Zone region (4°N) are presented. The trough of the fracture is interpreted as an open extension joint, a graben produced by stretching along the axis of the Mid-Atlantic Ridge. Bedrock studies showed that typical mid-ocean tholeiitic basalts occur within the narrow (60 nm wide) axial rift zone, whereas igneous rocks not typical for the ocean were found on the eastern and western flank plateaus. This allows to suppose that a reworked relict continental-type basement of pre-Upper Jurassic age possibly exists beneath the flank plateaus, within the segment under discussion. The above data correspond to the hypothesis of E. Bonatti about nonspreading nature of the basement of Mid-Atlantic Ridge within the equatorial segment and the Strakhov Fracture Zone.

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Cite this as

Udintsev, Gleb B, Beresnev, Alexander F, Golod, V M, Kol'tsova, A V, Kurentsova, Natalia A, Zakharov, M V, Agapova, Galina V, Volokitina, Lyudmila P, Udintsev, Vladimir G (1996). Dataset: Rocks and minerals from the Strakhov Fracture Zone, 4°N Mid-Atlantic Ridge. https://doi.org/10.1594/PANGAEA.759782

DOI retrieved: 1996

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.759782
Author Udintsev, Gleb B
Given Name Gleb B
Family Name Udintsev
More Authors
Beresnev, Alexander F
Golod, V M
Kol'tsova, A V
Kurentsova, Natalia A
Zakharov, M V
Agapova, Galina V
Volokitina, Lyudmila P
Udintsev, Vladimir G
Source Creation 1996
Publication Year 1996
Resource Type application/zip - filename: Udintsev_1996
Subject Areas
Name: Oceans

Related Identifiers
Title: Geological structure of the Strakhov fracture zone (equatorial segment of the Mid-Atlantic Ridge)
Type: DOI
Relation: IsSupplementTo
Year: 1996
Source: Oceanology
Authors: Udintsev Gleb B , Beresnev Alexander F , Golod V M , Kol'tsova A V , Kurentsova Natalia A , Zakharov M V , Agapova Galina V , Volokitina Lyudmila P , Udintsev Vladimir G .