Abstract
ABSTRACT The Kiowa Formation (Early Cretaceous) of north-central Kansas contains abundant discoidal concretionary masses of impure siderite (so-called clay-ironstone) that display features similar to the synaeresis cracks developed in argillaceous sediments. These features are in keeping with an early diagenetic origin of the siderite concretions and are suggestive of the dewatering of colloidally precipitated iron carbonate soon after deposition of the enclosing muds. The iron in the siderite concretions probably was released from coatings of iron oxide or hydrated ferric oxide on the detrital clay micelles that make up illitic Kiowa shale.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of sedimentary research. Section A, Sedimentary petrology and processes : an international journal of SEPM (Society for Sedimentary Geology)
Paper Title
Journal
Date
