NDLI: Fossilization of radiolarian skeletons

Content Provider	Springer Nature Link
Author	Afanasieva, M. S. Amon, E. O.
Copyright Year	2014
Abstract	Questions of radiolarian skeleton fossilization are analyzed. Complete disruption of the primary organic matrix of the skeleton and different lithogenetic conditions, on the one hand, cause disintegration of skeletons into fragments and, on the other hand, facilitate the fusion of adjacent mineral units and realization of the trend of silica towards structural improvement in the successive series of globular opal A → opal CT → low-temperature tridymite → low-temperature quartz. Transformation of opal A into opal CT and quartz is under control of temperature and time. Thus, modifications of SiO$_{2}$ in radiolarian skeletons possibly show a response to respective stages of lithogenesis: sedimentogenesis → diagenesis → early catagenesis → late catagenesis. Great attention is paid to pyritization of skeletons under conditions of hydrosulphuric contamination. It is shown that, in the radiolarian skeleton, silica was secondarily replaced by other minerals.
Starting Page	1487
Ending Page	1501
Page Count	15
File Format	PDF
ISSN	00310301
Journal	Paleontological Journal
Volume Number	48
Issue Number	14
e-ISSN	15556174
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-01-07
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Radiolaria fossilization pyritization replacement of silica stages of lithogenesis Paleontology
Content Type	Text
Resource Type	Article
Subject	Paleontology

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