MAGNETOSTRATIGRAPHY AND BIOSTRATIGRAPHY OF AN ANISIAN-LADINIAN (MIDDLE TRIASSIC) BOUNDARY SECTION FROM HYDRA (GREECE)

被引：14
|
作者：
MUTTONI, G
CHANNELL, JET
NICORA, A
RETTORI, R
机构：
[1] UNIV FLORIDA,DEPT GEOL,GAINESVILLE,FL 32611
[2] UNIV PERUGIA,DIPARTIMENTO SCI TERRA,I-06100 PERUGIA,ITALY
来源：
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY | 1994年 / 111卷 / 3-4期
关键词：
D O I：
10.1016/0031-0182(94)90066-3
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
On the island of Hydra, the Anisian/Ladinian boundary is exposed in a 24 m thick section of nodular reddish Han-Bulog Limestone. This paper is focused on the magnetostratigraphy and conodont biostratigraphy of this section. The Anisian/Ladinian boundary is defined by the First Appearance Datum (FAD) of the conodont species Gondolella trammeri Kozur (base of the Nevadites ammonoid zone), and occurs in a normal polarity zone. Microfacies analysis has distinguished a lower and upper lithofacies recording gradual shallowing from pelagic conditions to a platform margin paleoenvironment.
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页码：249 / 262
页数：14
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