LATE MIOCENE VEGETATIONAL AND CLIMATIC VARIATIONS INFERRED FROM A POLLEN RECORD IN NORTHWEST WYOMING

被引：25

作者：

BARNOSKY, CW ^{[1
]}

机构：

[1] UNIV WASHINGTON, DEPT GEOL SCI, SEATTLE, WA 98195 USA

来源：

SCIENCE | 1984年 / 223卷 / 4631期

关键词：

D O I：

10.1126/science.223.4631.49

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：

A pollen stratigraphy from late Miocene lacustrine strata (Teewinot Formation) in Jackson Hole, Wyoming, permits analysis of vegetation and climate history over a time interval of less than 300,000 yr with better temporal resolution of data than has been reported from terrestrial Tertiary deposits. The flora was essentially modern and 6 successive pollen assemblages indicate alternating dry and wet conditions. The frequency of climatic change in this record is similar to that inferred from marine isotope records for both late Tertiary and Quaternary time.

引用

页码：49 / 51

页数：3