septarian


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Related to septarian: Septarian Nodule

septarian

[sep′tar·ē·ən]
(geology)
Pertaining to the irregular polygonal pattern of internal cracks developed in septaria.
References in periodicals archive ?
Diagenetic calcite occurred as micrite disseminated in the clay matrix, often associated with pyrite, and as microsparite that filled residual porosity in bioclasts (Figure 4(b)) and septarian veining in phosphate nodules.
Actually the letters stand for Kladenska Asociace Rozbijecu Pelosideritu ("Kladno Association for the Breaking Open of Septarian Nodules").
Moreover, some layers are rich in intrabasinal carbonate-rock fragments including septarian nodules, derived from the calcretes of the Agreda Fm.
Eight specimens, including granite, rhyolite, blueschist, septarian concretions, and a triolibite, were loaned to WMI from the geology collections at the University of Southern Indiana.
Less well-known are undocumented fossils, sedimentary structures, and "curiosities." As a service (earning project, the 2011 UTM Paleobotany class conducted a "forensic reconstruction" of the collection yielding 218 specimens (172 fossil plants [168 Carboniferous; 4 Paleogene-Neogene], 29 invertebrates and ichnofossils, and 17 sedimentary-diagenetic features [Ferricrete, leisegang, septarian nodules]).