Radiolarite is a siliceous, comparatively hard, fine-grained, chert-like, and homogeneous sedimentary rock that is composed predominantly of the microscopic...

basalt. Basanite (not to be confused with bassanite), Lydian stone, and radiolarite (a.k.a. lydite or flinty slate) are terms used to refer to several types...

condition and biogenic silica/detrital fluxes of the Middle Jurassic Radiolarite in Tethys (Sogno, Lombardy, N-Italy): Possible link with glaciation?"...

still deposited. An example of a rock formed of silica skeletons is radiolarite. When the bottom of the sea has a small inclination, for example, at...

tools are made from cryptocrystalline materials such as chert, flint, radiolarite, chalcedony, obsidian, basalt, and quartzite via a splitting process...

oxides and hydroxides of iron Mercury, (as liquid) Moldavite Mookaite/Radiolarite Obsidian—volcanic glass; non-crystalline structure, a silica rich glass...

(var.) Herkimer diamond (var.) Milky quartz (var.) Prasiolite (var.) Radiolarite (var.) Rose quartz (var.) Rock crystal (var.) Shocked quartz (var.) Smoky...

nannoplankton Siliceous ooze biogenic silica silicification diatomaceous earth radiolarite Microfossil Reverse weathering Sedimentary ecology Soil biomantle Soil...

responsible for extracting silica from seawater from the Jurassic and later. Radiolarite consists mostly of remains of radiolarians. When the remains are well-cemented...

INIST 14692468. Racki, G; Cordey, Fabrice (2000). "Radiolarian palaeoecology and radiolarites: Is the present the key to the past?". Earth-Science Reviews. 52 (1):...