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East Qinling-Dabashan area is one of the important places
for the study of the Early Paleozoic crustal evolution in East China.
This book will detail the 16 Cambrian sections in the area and systematically
describe trilobites found there; the 81 genera or subgenera and 161 species
or subspecies (or undetermined and indelinite species) blonging respectively
to 4 orders, 4 suborders, 14 superfamilies, 36 families, in which there
are 2 new families, 12 new genera (or subgenera) and 71 new species. Based
on this , the sequence of the Cambrian system in each stratigraphic areas
is reconstructed in which there are 2 new groups, 12 new formations and
20 trilobite assemblage zones (or zones) established; many genera and
species of agnositids, present in upper Middle Cambrian, provide facility
for intercontinental correlation of the trillobite zones; in addition,
7 maps of lithofacies and paleogeography have been made. The study of
the Cambrian strata, lithofacies, paleogeography and trilobites in this
area is of great significance for a better understading of the trilobite
geographic proincialization, the Cambrian crustal volution and the distribution
law of the useful mineral resoures in the black rock series.
There are 24 plates, 58 tex-figures and 19 tables included in the book.
Contents
1. Introduction
2. Characteristics of Stratigraphic Regionalization
3. Characteristics of Lithofacies and paleography
4. Systematic Descriptions of Trilobites
5. References
6. Plates and their Explanation
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