The Carboniferous timescale: an introduction

S. Lucas, J. Schneider, S. Nikolaeva, Xiandong Wang
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引用次数: 1

Abstract

Abstract The Carboniferous chronostratigraphic scale consists of two subsystems, six series and seven stages. Precise numerical age control within the Carboniferous is uneven, and a global magnetic polarity timescale for the Carboniferous is far from established. Isotope stratigraphy based on Sr, C and O isotopes is at an early stage but has already identified a few Sr and C isotope events of use to global correlation. Cyclostratigraphy has created a workable astrochronology for part of Pennsylvanian time that needs better calibration. Chronostratigraphic definitions of most of the seven Carboniferous stages remain unfinished. Future research on the Carboniferous timescale should focus on Global Stratotype Section and Point (GSSP) selection for the remaining, undefined stage bases, definition and characterization of substages, and further development and integration of the Carboniferous chronostratigraphic scale with radioisotopic, magnetostratigraphic, chemostratigraphic and cyclostratigraphic tools for calibration and correlation, and the cross-correlation of non-marine and marine chronologies.
石炭纪的时间尺度:介绍
石炭系年代地层尺度分为两个亚系、六个系、七个期。石炭系内部精确的数值年龄控制是不均匀的,石炭系的全球磁极时间标度远未建立。基于Sr、C和O同位素的同位素地层学尚处于早期阶段,但已发现了一些对全球对比有用的Sr和C同位素事件。旋回地层学为宾夕法尼亚的部分时间创造了一种可行的天体年代学,需要更好的校准。石炭纪七个阶段的年代地层定义大部分仍未完成。未来石炭系时间尺度的研究应集中在剩余未确定的阶段基础的全球层型剖面和点(GSSP)选择、亚阶段的定义和表征,以及石炭系年代地层尺度与放射性同位素、磁地层学、化学地层学和旋回地层学工具的进一步发展和整合,进行校准和对比,以及非海相和海相年代学的相互对比。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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