METHANE-DERIVED MARINE CARBONATES OF PLEISTOCENE AGE

被引：67

作者：

HATHAWAY, JC

DEGENS, ET

机构：

[1] U. S. Geological Survey, Woods Hole

[2] Woods Hole Oceanographic Institution, Woods Hole

来源：

SCIENCE | 1969年 / 165卷 / 3894期

关键词：

D O I：

10.1126/science.165.3894.690

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：

In some calcium carbonate-bearing sandstones from the edge of the continental shelf off the northeast United States, the δC13 range is from -30 and -60 per mil for both aragonite and high-magnesium calcite. The δC13 of co-existing shells of Modiolus sp. is normal (+1.7 to -2.7 per mil). The δO18 values of around +3.5 per mil in all samples suggest deposition at temperatures around 0°C. Quaternary methane oxidized either chemically or microbiologically to carbon dioxide is the probable source of carbon in these carbonates.

引用

页码：690 / &