Geological Application of Graptolite Reflectance
|July 29, 2023||Filled under Com II||
Dr. Ye Wang
The working group on Geological Application of Graptolite Reflectance was established in the 2022 ICCP New Delhi conference. Graptolite reflectance (GR) is the most significant thermal index for establishing thermal maturation in pre-Devonian rocks, and is needed to integrate this work into the efforts of the ICCP.
At the ICCP Meeting in New Delhi, several potential objectives were put forward, including:
1). General round robin exercises on samples with well-identifiable graptolite to measure reflectance values (Fig. 1 and 2),
2) Testing the graptolite reflectance anomaly from one sedimentary basin (Zheng et al., 2022),
3). Investigate the relationship between graptolite reflectance and other geochemical maturity indicators.
The new WG will be cooperating with the Classification and Terminology of Zooclasts in old sediments WG of Commission I to enable successful activities within both WGs.
With the work from all the participants and results comparison, we aim to standardize the geological application of graptolite reflectance.
Zheng, X., Schovsbo, N.H., Luo, Q., Wu, J., Zhong, N., Goodarzi, F. and Sanei, H., 2022. Graptolite reflectance anomaly. International Journal of Coal Geology, 261, p.104072.
- ICCP Meeting, New Delhi – Proposal for Graptolite WG in Commission II
- Proposal to establish new ICCP WG in the Commission II – ICCP News No. 84 December 2022.
- Preparation of 2023 Graptolite WG round robin exercise on graptolite from Ottenby Alum shale, Öland, Sweden.