Magmatic rifting and active volcanism: introduction

IN43D-0108: Magmatic volatiles as an amplifier of centrifugal volcanism

Millisecond fluctuations in length of day over multiple decades may induce fluctuations in flow of magma to the surface. We propose that the same magmatic volatiles that greatly amplify volcanic eruptions can also amplify these minute magmatic fluctuations sufficiently to be detected in sea surface temperature.

Rifting, lithosphere breakup and volcanism: Comparison of magma-poor and volcanic rifted margins

On rates and styles of late volcanism and rifting on Venus

[1] We investigated the possibility of significant variations in the rates and styles of volcanism and rifting during the time postdating the formation of regional plains on Venus. We analyzed the age relations of all known impact craters 30 km in diameter (183 craters) with the neighboring geologic units. Of these we selected 164 craters which were superposed on regional plains and determined ...

Beta Regio, Venus: Evidence for uplift, rifting, and volcanism due to a mantle plume

Geophysical data have led to the interpretation that Beta Regio, a 2000×25000 km wide topographic rise with associated rifting and volcanism, formed due to the rise of a hot mantle diapir interpreted to be caused by a mantle plume. We have tested this hypothesis through detailed geologic mapping of the V-17 quadrangle, which includes a significant part of the Beta Regio rise, and reconnaissance...

From Lithospheric Thickening and Divergent Collapse to Active Continental Rifting