- radiolarian rock
- 放射虫岩
English-Chinese geology dictionary (英汉地质大词典). 2013.
radiolarian rock
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radiolarian — /ray dee oh lair ee euhn/, n. any minute, marine protozoan of the class Radiolaria, or, in some classification schemes, the superclass Actinopoda, having an amebalike body with radiating, filamentous pseudopodia and a usually elaborate outer… … Universalium
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Triassic Period — Interval of geologic time, с 248–206 million years ago, that marks the beginning of the Mesozoic Era. Many new vertebrates emerged during the Triassic, heralding the major changes that were to occur in both terrestrial and marine life forms… … Universalium
Radiolarite — (Jurassic) from the Alps. Radiolarite is a siliceous, comparatively hard, fine grained, chert like, and homogeneous sedimentary rock that is composed predominantly of the microscopic remains of radiolarians. This term is also used for indurated… … Wikipedia
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Geology of the Australian Capital Territory — Australia grew around three fused pieces of very ancient continental crust (cratons). The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian … Wikipedia
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