Bacterial clay authigenesis: a common biogeochemical process

Marine Authigenesis , a Holistic Approach

This book is a collection of papers focusing on various aspects of authigenic and diagenetic marine minerals and related elemental cycling. In essence, it belongs to a line of specialized volumes marking major steps of continued international cooperation. Closely following the establishment of UNESCO International Geological Correlation Programme (IGCP) Project 156 (Phosphorites) in 1978, SEPM ...

Gas migration process in deformable clay formations

Introduction To predict the evolution of a Geological Disposal Facility, it is necessary to understand the interaction between a number of key features and process and its impact on the long-term behaviour. Central to these issues are the mechanisms and process that govern the movement of gases in a repository. Linking the gas transport to the stress-strain response of the engineering systems b...

Rhythmic Clay: A View of Jun Kaneko's Process

Biogeochemical, Isotopic and Bacterial Distributions Trace Oceanic Abyssal Circulation

We explore the possibility of tracing routes of dense waters toward and within the ocean abyss by the use of an extended set of observed physical and biochemical parameters. To this purpose, we employ mercury, isotopic oxygen, biopolymeric carbon and its constituents, together with indicators of microbial activity and bacterial diversity found in bottom waters of the Eastern Mediterranean. In t...

Global distribution of clay-size minerals on land surface for biogeochemical and climatological studies

Clay-size minerals play important roles in terrestrial biogeochemistry and atmospheric physics, but their data have been only partially compiled at global scale. We present a global dataset of clay-size minerals in the topsoil and subsoil at different spatial resolutions. The data of soil clay and its mineralogical composition were gathered through a literature survey and aggregated by soil ord...