EVIDENCE FROM PALEOSOLS FOR THE GEOLOGICAL ANTIQUITY OF RAIN-FOREST

被引：45
作者：
RETALLACK, GJ [1 ]
GERMANHEINS, J [1 ]
机构：
[1] EOTVOS LORAND UNIV, INST APPL & ENVIRONM GEOL, H-1088 BUDAPEST, HUNGARY
来源：
SCIENCE | 1994年 / 265卷 / 5171期
关键词：
D O I：
10.1126/science.265.5171.499
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：
Kaolinitic claystones in Paleozoic paleokarst underlying the Middle Pennsylvanian Fort Scott Limestone near Drake, Missouri, contain abundant fossil root traces. These include a surficial root mat as well as stout, woody, deeply penetrating root traces: a rooting pattern similar to that under rain forest. Also similar to soils of rain forest is the deeply weathered clay of the paleosol, in which minimal amounts of nutrient bases remain. forest communities adapted to oligotrophic clayey substrates in humid climates existed at least 305 million years ago.
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页码：499 / 502
页数：4
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