Carbon isotope values in conodont elements from the latest Devonian-Early Carboniferous carbonate platform facies (Timan-Pechora Basin)

被引：6

作者：

Zhuravlev, Andrey, V ^{[1
]}

Smoleva, Irina, V ^{[1
]}

机构：

[1] UrB RAS, Inst Geol Komi SC, Pervomayskaya 54, Syktyvkar 167000, Russia

来源：

ESTONIAN JOURNAL OF EARTH SCIENCES | 2018年 / 67卷 / 04期

关键词：

Famennian; Tournaisian; conodonts; delta C-13(org); Timan-Pechora Basin; BONE-COLLAGEN; ORGANIC-MATTER; STABLE CARBON; NITROGEN; MARINE; VERTEBRATES; PHYLOGENY; TEETH; CYCLE;

D O I：

10.3176/earth.2018.17

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The delta C-13(org) values and their variations in conodont elements of the latest Famennian-Tournaisian species Polygnathus parapetus Druce are considered. The conodonts studied come from the latest Famennian-Tournaisian interval of the Kamenka River section (Timan-Pechora Basin). The carbon isotope composition of conodont elements had an average value of -25.2 parts per thousand, suggesting a low trophic level of this species. During the latest Famennian (praesulcata conodont Zone) delta C-13(org) shifted to more negative values (up to -30.4 parts per thousand), which may be attributed to changes in the global carbon cycle and local influx of organic matter of terrestrial origin during the terminal Famennian regression.

引用

页码：238 / 246

页数：9