Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/82974
Title: Miocene to Holocene marine tephrostratigraphy offshore northern Central America and southern Mexico : pulsed activity of known volcanic complexes
Authors: Eisele, Steffen
Wang, K.‐L.
Frische, M.
Schindlbeck, J. C.
Kutterolf, S.
Freundt, A.
Keywords: Volcanic Complexes
Marine
DRNTU::Science::Geology
Issue Date: 2018
Source: Schindlbeck, J. C., Kutterolf, S., Freundt, A., Eisele, S., Wang, K.-L., & Frische, M. (2018). Miocene to Holocene marine tephrostratigraphy offshore northern Central America and southern Mexico : pulsed activity of known volcanic complexes. Geochemistry, Geophysics, Geosystems, 19(11), 4143-4173. doi:10.1029/2018GC007832
Series/Report no.: Geochemistry, Geophysics, Geosystems
Abstract: We studied the tephra inventory of 14 deep sea drill sites of three Deep Sea Drilling Project and Ocean Drilling Program legs drilled offshore Guatemala and El Salvador (Legs 67, 84, and 138) and one leg offshore Mexico (Leg 66). Marine tephra layers reach back from the Miocene to the Holocene. We identified 223 primary ash beds and correlated these between the drill sites, with regions along the volcanic arcs, and to specific eruptions known from land. In total, 24 correlations were established between marine tephra layers and to well‐known Quaternary eruptions from El Salvador and Guatemala. Additional 25 tephra layers were correlated between marine sites. Another 108 single ash layers have been assigned to source areas on land resulting in a total of 157 single eruptive events. Tephra layer correlations to independently dated terrestrial deposits provide new time markers and help to improve or confirm age models of the respective drill sites. Applying the respective sedimentation rates derived from the age models, we calculated ages for all marine ash beds. Hence, we also obtained new age estimates for eight known but so far undated large terrestrial eruptions. Furthermore, this enables us to study the temporal evolution of explosive eruptions along the arc, and we discovered five pulses of increased activity: (1) a pulse during the Quaternary, (2) a Pliocene pulse between 6 and 3 Ma, (3) a Late Miocene pulse between 10 and 7 Ma, (4) a Middle Miocene pulse between 17 and 11 Ma, and (5) an Early Miocene pulse (ca. >21 Ma).
URI: https://hdl.handle.net/10356/82974
http://hdl.handle.net/10220/47534
DOI: 10.1029/2018GC007832
Rights: © 2018 American Geophysical Union. All rights reserved. This paper was published in Geochemistry, Geophysics, Geosystems and is made available with permission of American Geophysical Union.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ASE Journal Articles

SCOPUSTM   
Citations 20

4
checked on Aug 31, 2020

WEB OF SCIENCETM
Citations 50

6
checked on Oct 16, 2020

Page view(s) 50

80
checked on Oct 19, 2020

Download(s) 50

32
checked on Oct 19, 2020

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.