马连洼岩芯描素1（Malianwa core to delineate 1）.docVIP

马连洼岩芯描素1（Malianwa core to delineate 1） Some of the chips are eroded and the matrix is mainly composed of light minerals. The cements are volcanic ash. The two cements are mainly volcanic ash Other alterations are not apparent Quaternary and broken beds: Light brown red, loosely stacked. Quaternary thickness is about 0.1m. Mainly by Quaternary humus and broken layer of weak limonitization crystal tuff broken product composition. It is a small angular granular, between 0.2--1cm in size, without any cementation between the breccia. The surface contains a small amount of plant roots. Broken layer: brown yellow, mainly composed of crystal debris tuff, quartz porphyry small fragments. Because of the weathering and oxidation of the surface, the core is incomplete and is mostly breccia shaped. There is no cementation between the breccia. Brown iron mineralization; clastic tuff: The fresh surface is gray, gray green, yellow light; weathering fissure is brown red, tuffaceous structure, massive structure. Crystal chip is composed of grayish white feldspar and quartz feldspar, white ash composition; a short plate subhedral granular, particle size in 0.20-0.50mm; quartz, multi granular xenotopic, 0.30-080mm in size, mainly in light matrix minerals, difficult to identify the naked eye, the other visible local little sericite along the fracture orientation. This layer is subjected to late hydrothermal alteration, which is mainly characterized by weak brown iron mineralization, and partly in the presence of chlorite and sericite. Limonite, light brown yellow, mainly disseminated, film like, distributed between cracks; chlorite, gray green, mainly soil like, block distribution; sericite in a flake like orientation. As the layer is generally affected by tectonic activity, the fracture of rock is developing and fractured. A gradual contact with the underlying rock. Brown iron mineralization; clastic tuff: Fresh is grey white; weathering fissure is yellow, tuffaceous structure, massive