Micromorphology of modern tills in southwestern Spitsbergen – insights into depositional and post-depositional processes

CHAPTER 6: Modern Analogues and Depositional Models

Post-depositional changes in snow isotope content

Post-depositional changes in snow isotope content: preliminary results of laboratory experiments A. A. Ekaykin, T. Hondoh, V. Y. Lipenkov, and A. Miyamoto Institute of Low Temperature Sciences, Hokkaido University, 060-0819 Sapporo, Japan Arctic and Antarctic Research Institute, 199397 St. Petersburg, Russia Received: 3 September 2009 – Accepted: 8 September 2009 – Published: 8 October 2009 Cor...

Modeling post-depositional mixing of archaeological deposits

We develop a series of simple mathematical models that describe vertical mixing of archaeological deposits. The models are based on assigning probabilities that single artifact specimens are moved between discrete stratigraphic layers. A recursion relation is then introduced to describe the time evolution of mixing. Simulations are used to show that there may be important regularities that char...

An Experimental Investigation of Post-depositional Taphonomic Bias in Conodonts

The different types of elements that occurred together in conodont apparatuses are not recovered from the fossil record in the expected numbers. The causes of this are complex and difficult to study. Numerous complete articulated skeletons of Ozarkodina excavata (Branson and Mehl) have been recovered from the Eramosa Member at Hepworth, Ontario, and as a consequence, several of the potential bi...

MICROFACIES, DEPOSITIONAL ENVIRONMENT, AND DIAGENETIC PROCESSES OF THE MAUDDUD MEMBER, IN THE PERSIAN GULF

Mauddud member with the age of late Albian to Cenomanian is equivalent to the lower Sarvak formation in the southern Persian Gulf and adjacent area. In this work, microfacies, depositional environment, and diagenetic processes affected the Mauddud member in a field in the Persian Gulf are investigated. Based on the studies of available cores and thin sections of 3 wells, five types of microfaci...