THE CLAY MINERALOGY AND SOME TRACE ELEMENT CONTENTS OF THE SPEETON CLAY
- 1 August 1974
- journal article
- Published by Geological Society of London in Proceedings of the Yorkshire Geological and Polytechnic Society
- Vol. 40 (2) , 181-190
- https://doi.org/10.1144/pygs.40.2.181
Abstract
Summary: Pronounced time-related trends are evident in the clay mineralogy of the Speeton Clay (Lower Cretaceous): the kaolinite/illite ratio decreases consistently as the sediments get younger, and the other main mineral, probably an illitesmectite, becomes progressively more illitic. It is suggested that these changes reflect weathering conditions at the source rather than differences in actual source-rock type or weathering of the Speeton Clay itself. This conclusion is supported by the relative consistency in trace element contents, which might be expected to reflect major changes in source material.This publication has 9 references indexed in Scilit:
- The neoformation of clay minerals in brackish and marine environmentsClay Minerals, 1971
- The Hauterivian (Lower Cretaceous) biostratigraphy of the Speeton Clay of Yorkshire, EnglandNewsletters on Stratigraphy, 1971
- Burial Diagenesis in Gulf Coast Pelitic SedimentsClays and Clay Minerals, 1970
- Origin of Fuller's Earth in the Mesozoic of Southern EnglandNature, 1968
- BIOFACIES AND LITHOFACIES OF THE SPEETON CLAY D BEDS, E. YORKSHIREProceedings of the Yorkshire Geological and Polytechnic Society, 1968
- Observations on the Speeton Clay (Lower Cretaceous)Geological Magazine, 1964
- Ostracoda from the Type Speeton Clay (Lower Cretaceous) of YorkshireMicropaleontology, 1962
- The Subdivision of the Upper D Beds of the Speeton Clay of Speeton, East YorkshireGeological Magazine, 1960
- On the Subdivisions of the Speeton ClayQuarterly Journal of the Geological Society, 1889