Geochemistry and petrology of ODP Site 136-843 basalts

About 13 m of Cretaceous, tholeiitic basalt, ranging from normal (N-MORB) to transitional (T-MORB) mid-ocean-ridge basalts, was recovered at Ocean Drilling Program Site 843 west...在大洋钻探计划（Ocean Drilling Program）843站位西侧，回收得到厚度约13米的白垩纪拉斑玄武岩，该套岩石的岩性覆盖从正常洋中脊玄武岩（N-MORB）到过渡型洋中脊玄武岩（T-MORB）的范围。