Response to comment on "Iron isotope constraints on the archean and paleoproterozoic ocean redox state"

被引：13
|
作者：
Rouxel, OJ [1 ]
Bekker, A
Edward, KJ
机构：
[1] Woods Hole Oceanog Inst, Marine Chem & Geochem Dept, Woods Hole, MA 02543 USA
[2] Woods Hole Oceanog Inst, Geomicrobiol Grp, Woods Hole, MA 02543 USA
[3] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA
来源：
SCIENCE | 2006年 / 311卷 / 5758期
关键词：
D O I：
10.1126/science.1118420
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We reported a secular trend in iron isotope values of Precambrian sedimentary pyrite and related it to the changing redox state of Precambrian oceans. We restate that the iron cycle before 1.8 billion years ago was different from that now and reflected the rise of atmospheric oxygen and the subsequent moderate atmospheric oxygen level in the Paleoproterozoic.
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