REFLECTIVE OCEANIC CRUST FORMED AT A FAST-SPREADING CENTER IN THE PACIFIC

dc.contributor.author	Ranero C.R.
dc.contributor.author	Reston T.J.
dc.contributor.author	Belykh I.
dc.contributor.author	Gnibidenko H.
dc.date.accessioned	2020-12-23T08:29:04Z
dc.date.available	2020-12-23T08:29:04Z
dc.date.issued	1997
dc.identifier	https://elibrary.ru/item.asp?id=13255630
dc.identifier.citation	Geology, 1997, , 6, 499-502
dc.identifier.issn	0091-7613
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/21139
dc.description.abstract	We present new seismic images of Cretaceous crust formed at a fast-spreading center in the Pacific. The high crustal reflectivity observed in these data contradicts the conventional wisdom that accretionary structures formed at fast-spreading centers are not seismically detectable. Subhorizontal reflections can be traced at 600 800 ms two-way time below the top of basement for tens of kilometres, suggesting the presence of a widespread seismic boundary, possibly a structural discontinuity related to the maximum depth of hydrothermal circulation at the spreading center or the base of the sheeted dikes. Lower-crustal reflections, dipping dominantly toward the paleo spreading center, may represent mafic-ultramafic banding similar to that observed in the lower crust of reconstructed ophiolite sections.
dc.subject	Cretaceous	en
dc.title	REFLECTIVE OCEANIC CRUST FORMED AT A FAST-SPREADING CENTER IN THE PACIFIC
dc.type	Статья
dc.subject.age	Mesozoic::Cretaceous	en
dc.subject.age	Мезозой::Меловая	ru

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