In this section
@article{Davies:2015:10.1016/j.epsl.2014.11.052,
author = {Davies, DR and Goes, S and Sambridge, M},
doi = {10.1016/j.epsl.2014.11.052},
journal = {Earth and Planetary Science Letters},
pages = {121--130},
title = {On the relationship between volcanic hotspot locations, the reconstructed eruption sites of large igneous provinces and deep mantle seismic structure},
url = {http://dx.doi.org/10.1016/j.epsl.2014.11.052},
volume = {411},
year = {2015}
}
TY - JOUR
AB - It has been proposed that volcanic hotspots and the reconstructed eruption sites of large igneous provinces (LIPs) are preferentially located above the margins of two deep mantle large low shear-wave velocity provinces (LLSVPs), beneath the African continent and the Pacific Ocean. This spatial correlation has been interpreted to imply that LLSVPs represent long-lived, dense, stable thermo-chemical piles, which preferentially trigger mantle plumes at their edges and exert a strong influence on lower-mantle dynamics. Here, we re-analyse this spatial correlation, demonstrating that it is not global: it is strong for the African LLSVP, but weak for the Pacific. Moreover, Monte Carlo based statistical analyses indicate that the observed distribution of African and Pacific hotspots/reconstructed LIPs is consistent with the hypothesis that they are drawn from a sample that is uniformly distributed across the entire areal extent of each LLSVP: the stronger spatial correlation with the margin of the African LLSVP is expected as a simple consequence of its elongated geometry, where more than 75% of the LLSVP interior lies within 10° of its margin. Our results imply that the geographical distribution of hotspots and reconstructed LIPs does not indicate the extent to which chemical heterogeneity influences lower-mantle dynamics.
AU - Davies,DR
AU - Goes,S
AU - Sambridge,M
DO - 10.1016/j.epsl.2014.11.052
EP - 130
PY - 2015///
SN - 0012-821X
SP - 121
TI - On the relationship between volcanic hotspot locations, the reconstructed eruption sites of large igneous provinces and deep mantle seismic structure
T2 - Earth and Planetary Science Letters
UR - http://dx.doi.org/10.1016/j.epsl.2014.11.052
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349197500013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://www.sciencedirect.com/science/article/pii/S0012821X14007523
VL - 411
ER -