scholarly journals Paleosecular variation and time-averaged field recorded in late Pliocene-Holocene lava flows from Mexico

2005 ◽  
Vol 6 (7) ◽  
pp. n/a-n/a ◽  
Author(s):  
V. Mejia ◽  
H. Böhnel ◽  
N. D. Opdyke ◽  
M. A. Ortega-Rivera ◽  
J. K. W. Lee ◽  
...  
2007 ◽  
Vol 161 (3-4) ◽  
pp. 267-280 ◽  
Author(s):  
Emilio Herrero-Bervera ◽  
Jean-Pierre Valet

Author(s):  
N. V. Koronovsky ◽  
M. S. Myshenkova

On the basis of new materials this article deals with the structure and origin of a huge (up to 2 km) thick massif of acidic volcanic rocks located in a volcanic-tectonic depression in the Upper Chegem River in the North Caucasus. Discussion on the lava’s, rather than pyroclastic, origin of the main part of the rock mass as a result of repeated outpourings of lava flows, which formed the series of acidic volcanic rocks without interruptions with perfectly pronounced columnar jointing in a limited volume of a deep volcanic-tectonic depression, which was forming simultaneously with eruptions in the Late Pliocene. Volcanic rocks formed as a result of boiling silicate meltas the exit from the vent, which could be due to the nature of the phase transition of the supercritical water fluid.


2002 ◽  
Vol 3 (12) ◽  
pp. 1-14 ◽  
Author(s):  
Victoria Mejia ◽  
Rene W. Barendregt ◽  
Neil D. Opdyke

1999 ◽  
Vol 170 (4) ◽  
pp. 365-376 ◽  
Author(s):  
Carlo Laj ◽  
Hervé Guillou ◽  
Nadia Szeremeta ◽  
Robert Coe

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Julia Ricci ◽  
Julie Carlut ◽  
Jean-Pierre Valet

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