Multiple melt source origin of the Line Islands (Pacific Ocean)

Pockalny, Robert; Barth, Ginger; Eakins, Barry; Kelley, Katherine A.; Wertman, Christina

doi:10.1130/G49306.1

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Multiple melt source origin of the Line Islands (Pacific Ocean)

2021
By Pockalny, Robert ; Barth, Ginger ; Eakins, Barry ; ...
Source: Geology 49 (11): 1358–1362.

[PDF-3.41 MB]

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Details:

Journal Title:

Geology
Personal Author:

Pockalny, Robert ; Barth, Ginger ; Eakins, Barry ; Kelley, Katherine A. ; Wertman, Christina

Pockalny, Robert ; Barth, Ginger ; Eakins, Barry ; Kelley, Katherine A. ; Wertman, Christina Less -
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

The Line Islands volcanic chain in the central Pacific Ocean exhibits many characteristics of a hotspot-generated seamount chain; however, the lack of a predictable age progression has stymied previous models for the origin of this feature. We combined plate-tectonic reconstructions with seamount age dates and available geochemistry to develop a new model that involves multiple melt regions and multiple melt delivery styles to explain the spatial and temporal history of the Line Islands system. Our model identifies a new melt source region (Larson melt region at ~17°S, ~125°W) that contributed to the formation of the Line Islands, as well as the Mid-Pacific Mountains and possibly the Pukapuka Ridge.
Keywords:

[+]

Geochemistry Volcanic Activity Prediction Volcanoes
Source:

Geology 49 (11): 1358–1362.
DOI:

https://doi.org/10.1130/G49306.1
Document Type:

Journal Article
Place as Subject:

Pacific Ocean ; Line Islands

Pacific Ocean ; Line Islands Less -
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:d3d3c03051243e1b96ac8d68645d2b7b53c1fce0ce86719c9059f0c64ae9f6f1
Download URL:

https://repository.library.noaa.gov/view/noaa/33447/noaa_33447_DS1.pdf
File Type:

Supplemental Materials

htm

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