ALTHOUGH large quantities of gold are obtained from the detrital accumulations which overlie the palaeozoic rocks of Victoria, there can be no doubt that they have come originally from the ...

FEEDING: The chambered nautilus is a nekton-benthonic opportunistic scavenger with as many as 90 small oral tentacles that are used for feeding on fish, crustaceans, other invertebrates and detrital ...

Now, three- fourths.of the land area of the globe are covered by sedimentary rocks or by detrital and alluvial material, from which a large part of the sodium has been leached. The accessible ...

School of Earth Sciences and Resources, China University of Geosciences Beijing, Beijing, China Introduction: The east-west trending Khondalite Belt, located on the northern margin of the North China ...