Extensive 200-million-year-old continental flood basalts of the Central Atlantic Magmatic Province

被引：646

作者：

Marzoli, A

Renne, PR

Piccirillo, EM

Ernesto, M

Bellieni, G

De Min, A

机构：

[1] Berkeley Geochronol Ctr, Berkeley, CA 94709 USA

[2] Univ Trieste, Dipartimento Sci Terra, I-34127 Trieste, Italy

[3] Univ Calif Berkeley, Dept Geol & Geophys, Berkeley, CA 94720 USA

[4] Univ Sao Paulo, Inst Astron & Geofis, BR-01550890 Sao Paulo, Brazil

[5] Univ Padua, Dipartimento Mineral & Petrol, I-35100 Padua, Italy

来源：

SCIENCE | 1999年 / 284卷 / 5414期

关键词：

D O I：

10.1126/science.284.5414.616

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：

The Central Atlantic Magmatic Province (CAMP) is defined by tholeiitic basalts that crop out in once-contiguous parts of North America, Europe, Africa, and South America and is associated with the breakup of Pangea. 40Ar/39Ar and paleomagnetic data indicate that CAMP magmatism extended over an area of 2.5 million square kilometers in north and central Brazil, and the total aerial extent of the magmatism exceeded 7 million square kilometers in a few million years, with peak activity at 200 million years ago. The magmatism coincided closely in time with a major mass extinction at the Triassic-Jurassic boundary.

引用

页码：616 / 618

页数：3

共 47 条

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