A broad variety of body plans and subplans appear during a period of perhaps 8 million years (my) within the Early Cambrian, an unequaled explosion of morphological novelty, the ancestral lineages represented chiefly or entirely by trace fossils. Evidence from the fossil record can be combined with that from molecular phylogenetic trees to suggest that the last common ancestor of (i) protostome...

Recently, the demand for lithium (Li) as an energy storage element has increased, owing to rapid increase in number of electric vehicles. To meet this demand, Li exploration become increasingly important. The Boam deposit is located Uljin area eastern South Korea, where several rare-element pegmatites (0.24% Li) intrude Precambrian Janggun Limestone Formation. In study, we performed petrographi...

soursat metamorphic complex (smc) in west of takab city is one of the polyphase metamorphic terrenes in northern sanandaj-sirjan metamorphic belt of iran. the smc composed mainly of metasedimentary rocks associated with granitic intrusions. based on metamorphic rocks, two metamorphic phases could be separate in the complex. m1 is representative of regional metamorphisms which varies from greens...