Chemical composition of siderites and clay minerals from DSDP Holes 70-506G a...

As soon as they are emplaced on the sea floor, oceanic basalts go through a low-temperature alteration process which produces black halos concentrical with exposed surfaces and...大洋玄武岩一旦侵位至海底，便会经历低温蚀变作用，该作用会形成与暴露表面同心的黑色晕圈，且……