The alkaline oceanic island basalts(OIBs)with under-saturated SiO2 and high contents of CaO and alkaline are usually attributed to mantle sources different from
A number of high-temperature processes(e.g.,melt-rock reactions,metasomatism,partial melting)can produce signifi cant Ca isotopic fractionation and heterogeneit
The recombinant expression of phycocyanobilin(PCB)was carried out in Escherichia coli,and the best fermentation conditions of recombinant E.coli biosynthesized