- 期刊
New Biostratigraphic and Chemostratigraphic Data from the Chicotte Formation (Llandovery, Anticosti Island, Laurentia) Compared with the Viki Core (Estonia, Baltica)
Uusi võrdlevaid bio-ja kemostratigraafilisi andmeid Chicotte kihistust (Llandovery, Anticosti, Laurentia) ning Viki puursüdamikust (Eesti, Baltica)
並列摘要
Due to the lack of biostratigraphically useful graptolites in the crinoidal and reefal Chicotte Formation on Anticosti Island (Québec, Canada), the precise chronostratigraphic position of the formation is not known. New stable carbon isotope and conodont data and a comparison with the detailed conodont distribution and δ^13C development in the Viki core (Estonia) suggest an early Telychian age (Pterospathodus eopennatus to P. a. angulatus zones) for at least the lower half of the formation. This interval is characterized by a small but distinct positive excursion in δ^13C, with peak values of + 3.2‰ and + 2.8‰ VPDB in the lowermost 10-15 m of the Chicotte Formation on Anticosti and in the Viki core, respectively.
延伸閱讀
- Tammekänd, M., Hints, O., & Nõlvak, J. (2010). Chitinozoan Dynamics and Biostratigraphy in the Väo Formation (Darriwilian) of the Uuga Cliff, Pakri Peninsula, NW Estonia. Estonian Journal of Earth Sciences, (), 25-36. https://www.airitilibrary.com/Article/Detail?DocID=17367557-201003-201010290087-201010290087-25-36
- Radzevičius, S., Spiridonov, A., Brazauskasa, A., Norkus, A., Meidlab, T., & Ainsaar, L. (2014). Upper Wenlock δ^13C Chemostratigraphy, Conodont biostratigraphy and Palaeoecological Dynamics in the Ledai-179 Drill Core (Eastern Lithuania). Estonian Journal of Earth Sciences, 63(4), 293-299. https://doi.org/10.3176/earth.2014.33
- Kleesment, A., Urtson, K., Kiipli, T., Martma, T., Põldvere, A., Kallaste, T., Shogenova, A., & Shogenov, K. (2013). Temporal Evolution, Petrography and Composition of Dolostones in the Upper Devonian Plavinas Regional Stage, Southern Estonia and Northern Latvia. Estonian Journal of Earth Sciences, 62(3), 139-159. https://www.airitilibrary.com/Article/Detail?DocID=17367557-201309-201310160037-201310160037-139-159
- Siir, S., Kallaste, T., Kiipli, T., & Hints, R. (2015). Internal Stratification of Two Thick Ordovician Bentonites of Estonia: Deciphering Primary Magmatic, Sedimentary, Environmental and Diagenetic Signatures. Estonian Journal of Earth Sciences, 64(2), 140-158. https://doi.org/10.3176/earth.2015.23
- Kaljo, D., Einasto, R., Martma, T., Märss, T., Nestor, V., & Viira, V. (2015). A bio-chemostratigraphical test of the synchroneity of biozones in the upper Silurian of Estonia and Latvia with some implications for practical stratigraphy. Estonian Journal of Earth Sciences, 64(4), 267-283. https://doi.org/10.3176/earth.2015.33