naa a22 4500 51076519X CHVBK 20180411083154.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1134/S0001437013020082 doi (NATIONALLICENCE)springer-10.1134/S0001437013020082 Peculiarities of the magmatism and tectonics of the Knipovich Ridge [Elektronische Daten] [G. Kharin, D. Eroshenko] Petrological-geochemical data were obtained for intrusive rocks (gabbroids) recovered on the eastern flank of the Knipovich Ridge by deep-sea site 344 (DSDP, Leg 238). It was found that these rocks are similar to basalts and basaltic glasses studied in the adjacent sections of the ridge rift zone [7, 8]. This indicates that the intrusive rocks and erupted lavas are comagmatic. The gabbroids, basalts, and their quenched glasses were derived by differentiation in different-depth chambers and feeder channels. The petrochemical features of the gabbros and basalts (low Fe content, oxidized magnetic minerals) caused their weak magnetic properties. Owing to the multidirectional movements of the oceanic blocks, the bodies of the intrusive and effusive rocks their lost strict linearity and produced the mosaic anomalous magnetic field of the Knipovich Ridge. Pleiades Publishing, Ltd., 2013 Kharin G. Shirshov Institute of Oceanology, Atlantic Branch, Russian Academy of Sciences, pr. Mira 1, 236000, Kaliningrad, Russia aut Eroshenko D. Shirshov Institute of Oceanology, Atlantic Branch, Russian Academy of Sciences, pr. Mira 1, 236000, Kaliningrad, Russia aut Oceanology SP MAIK Nauka/Interperiodica 53/3(2013-05-01), 352-364 0001-4370 53:3<352 2013 53 11491 https://doi.org/10.1134/S0001437013020082 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0001437013020082 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kharin G. Shirshov Institute of Oceanology, Atlantic Branch, Russian Academy of Sciences, pr. Mira 1, 236000, Kaliningrad, Russia aut NATIONALLICENCE 700 1- Eroshenko D. Shirshov Institute of Oceanology, Atlantic Branch, Russian Academy of Sciences, pr. Mira 1, 236000, Kaliningrad, Russia aut NATIONALLICENCE 773 0- Oceanology SP MAIK Nauka/Interperiodica 53/3(2013-05-01), 352-364 0001-4370 53:3<352 2013 53 11491 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer