Impacts do not initiate volcanic eruptions: Eruptions close to the crater

Details Impacts do not initiate volcanic eruptions: Eruptions close to the crater Impacts do not initiate volcanic eruptions: Eruptions close to the crater

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003geo....31..869i&link_type=abstract

Geology, vol. 31, Issue 10, p.869

Computer Science

25

Scientific paper

Many papers on meteorite impact suggest that large impacts can induce volcanic eruptions through decompression melting of the underlying rocks. We perform numerical simulations of the impact of an asteroid with a diameter of 20 km striking at 15 km·s-1 into a target with a near-surface temperature gradient of 13 K·km-1 (“cold” case) or 30 K·km-1 (“hot” case). The impact creates a 250 300-km-diameter crater with ˜10,000 km3 of impact melt. However, the crater collapses almost flat, and the pressure field returns almost to the initial lithostat. Even an impact this large cannot raise mantle material above the peridotite solidus by decompression. Statistical considerations also suggest that impacts cannot be the common initiator of large igneous provinces any time in post heavy bombardment Earth history.

Affiliated with

Also associated with

No associations

Rating

Impacts do not initiate volcanic eruptions: Eruptions close to the crater does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Impacts do not initiate volcanic eruptions: Eruptions close to the crater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impacts do not initiate volcanic eruptions: Eruptions close to the crater will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-918371