Open AccessOcean‐bottom seismograph observations on the Mid‐Atlantic Ridge near 45°N — further results
Author(s) -
Lilwall R. C.,
Francis T. J. G.,
Porter I. T.
Publication year - 1978
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1978.tb04760.x
Subject(s) - seismometer , geology , mid atlantic ridge , ridge , seismology , intrusion , lithosphere , mid ocean ridge , magma , ocean bottom , seabed , oceanography , paleontology , tectonics , volcano , geochemistry
Summary. Analysis of data from events well recorded by ocean‐bottom seismographs on the Mid‐Atlantic Ridge near 45° N, indicates that most activity is centrally placed beneath the median valley floor. The results suggest a lithospheric thickness of 8 km under the median valley floor. The spatial and temporal behaviour of the largest swarm observed is indicative of active magma intrusion.