Professor Darren Grocke's Outputs (2)

Stable hydrogen-isotope ratios in beetle chitin: preliminary European data and re-interpretation of North American data (2006)
Journal Article
Gröcke, D., Schimmelmann, A., Elias, S., & Miller, R. (2006). Stable hydrogen-isotope ratios in beetle chitin: preliminary European data and re-interpretation of North American data. Quaternary Science Reviews, 25(15-16), 1850-1864. https://doi.org/10.1016/j.quascirev.2006.01.021

Beetle exoskeletons contain chitin, a poly amino-sugar that is biosynthesized incorporating hydrogen isotopes from diet and water. As the stable isotope ratios D/H (or 2H/1H, expressed as δD values) of precipitation and diet are jointly influenced by... Read More about Stable hydrogen-isotope ratios in beetle chitin: preliminary European data and re-interpretation of North American data.

Recognizing the Albian-Cenomanian (OAE1d) sequence boundary using plant carbon isotopes: Dakota Formation, Western Interior Basin, USA. (2006)
Journal Article
Gröcke, D., Ludvigson, G., Witzke, B., Robinson, S., Joeckel, R., Ufnar, D., & Ravn, R. (2006). Recognizing the Albian-Cenomanian (OAE1d) sequence boundary using plant carbon isotopes: Dakota Formation, Western Interior Basin, USA. Geology, 34(3), 193-196. https://doi.org/10.1130/g21998.1

Analysis of bulk sedimentary organic matter and charcoal from an Albian-Cenomanian fluvial-estuarine succession (Dakota Formation) at Rose Creek Pit (RCP), Nebraska, reveals a negative excursion of ∼3‰ in late Albian strata. Overlying Cenomanian stra... Read More about Recognizing the Albian-Cenomanian (OAE1d) sequence boundary using plant carbon isotopes: Dakota Formation, Western Interior Basin, USA..