10Be in rhodochrosite nodules from Neogene sediments along the Galapagos Ridge, equatorial Pacific

A. Aldahan; S. Morad; G. Possnert; U. Sturesson; A. ElSaiy

doi:10.1016/j.nimb.2009.10.146

¹⁰Be in rhodochrosite nodules from Neogene sediments along the Galapagos Ridge, equatorial Pacific

A. Aldahan, S. Morad, G. Possnert, U. Sturesson, A. ElSaiy

Earth Science

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Microcrystalline, calcian rhodochrosite occurs as nodules around burrows in late Neogene pelagic sediments from the Galapagos Ridge in the Guatemala Basin, eastern equatorial Pacific (DSDP Leg 68; Site 503). ¹⁰Be isotope revealed that the rhodochrosite nodules have formed under growth conditions much faster than those reported for Fe-Mn nodules. The overall REE patterns of the nodules and host pelagic sediments indicate element derivation mainly from marine pore water. However, variations in the shale normalised Eu values suggest influx of hydrothermal fluids into mounds area at Galapagos, which is also evidenced by the similar minor and major element contents in the nodules and host sediments.

Original language	British English
Pages (from-to)	1253-1256
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	268
Issue number	7-8
DOIs	https://doi.org/10.1016/j.nimb.2009.10.146
State	Published - Apr 2010

Keywords

AMS
Be-10
Galapagos
Marine sediments
Rhodochrosite

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.nimb.2009.10.146

Cite this

@article{b3306adc5c984dd68c0378067cf156f2,

title = "10Be in rhodochrosite nodules from Neogene sediments along the Galapagos Ridge, equatorial Pacific",

abstract = "Microcrystalline, calcian rhodochrosite occurs as nodules around burrows in late Neogene pelagic sediments from the Galapagos Ridge in the Guatemala Basin, eastern equatorial Pacific (DSDP Leg 68; Site 503). 10Be isotope revealed that the rhodochrosite nodules have formed under growth conditions much faster than those reported for Fe-Mn nodules. The overall REE patterns of the nodules and host pelagic sediments indicate element derivation mainly from marine pore water. However, variations in the shale normalised Eu values suggest influx of hydrothermal fluids into mounds area at Galapagos, which is also evidenced by the similar minor and major element contents in the nodules and host sediments.",

keywords = "AMS, Be-10, Galapagos, Marine sediments, Rhodochrosite",

author = "A. Aldahan and S. Morad and G. Possnert and U. Sturesson and A. ElSaiy",

year = "2010",

month = apr,

doi = "10.1016/j.nimb.2009.10.146",

language = "British English",

volume = "268",

pages = "1253--1256",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

number = "7-8",

}

TY - JOUR

T1 - 10Be in rhodochrosite nodules from Neogene sediments along the Galapagos Ridge, equatorial Pacific

AU - Aldahan, A.

AU - Morad, S.

AU - Possnert, G.

AU - Sturesson, U.

AU - ElSaiy, A.

PY - 2010/4

Y1 - 2010/4

N2 - Microcrystalline, calcian rhodochrosite occurs as nodules around burrows in late Neogene pelagic sediments from the Galapagos Ridge in the Guatemala Basin, eastern equatorial Pacific (DSDP Leg 68; Site 503). 10Be isotope revealed that the rhodochrosite nodules have formed under growth conditions much faster than those reported for Fe-Mn nodules. The overall REE patterns of the nodules and host pelagic sediments indicate element derivation mainly from marine pore water. However, variations in the shale normalised Eu values suggest influx of hydrothermal fluids into mounds area at Galapagos, which is also evidenced by the similar minor and major element contents in the nodules and host sediments.

AB - Microcrystalline, calcian rhodochrosite occurs as nodules around burrows in late Neogene pelagic sediments from the Galapagos Ridge in the Guatemala Basin, eastern equatorial Pacific (DSDP Leg 68; Site 503). 10Be isotope revealed that the rhodochrosite nodules have formed under growth conditions much faster than those reported for Fe-Mn nodules. The overall REE patterns of the nodules and host pelagic sediments indicate element derivation mainly from marine pore water. However, variations in the shale normalised Eu values suggest influx of hydrothermal fluids into mounds area at Galapagos, which is also evidenced by the similar minor and major element contents in the nodules and host sediments.

KW - AMS

KW - Be-10

KW - Galapagos

KW - Marine sediments

KW - Rhodochrosite

UR - http://www.scopus.com/inward/record.url?scp=77949897478&partnerID=8YFLogxK

U2 - 10.1016/j.nimb.2009.10.146

DO - 10.1016/j.nimb.2009.10.146

M3 - Article

AN - SCOPUS:77949897478

SN - 0168-583X

VL - 268

SP - 1253

EP - 1256

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 7-8

ER -