1 Research Institute of Nanhai West Oil Corp., Zhanjiang 524057;
2 Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000
Received Date: 1995-06-06
Publish Date:
1996-12-31
Abstract
Reseach on the alteration process and precipated products of feldspar from elastic rock in Tarim Basin was carried out by the way of scanning electron microscope and energy spectrum analyzed. The results show that there are two alteration ways of feldspar in the acid medium.The products are Kaolinite and authentic quartz when the porosity and Permeability of elastic rock is high, and in this case, the alkaline ions (K+, Na+ ) precipated from feldspar are carried away easily. Contrarily, the products are illite and smetite when the porosity and Permeability is lower. Especially, study on the alteration proceder of K-feldspar and it's products was carried out in this paper.
Abstract: Reseach on the alteration process and precipated products of feldspar from elastic rock in Tarim Basin was carried out by the way of scanning electron microscope and energy spectrum analyzed. The results show that there are two alteration ways of feldspar in the acid medium.The products are Kaolinite and authentic quartz when the porosity and Permeability of elastic rock is high, and in this case, the alkaline ions (K+, Na+ ) precipated from feldspar are carried away easily. Contrarily, the products are illite and smetite when the porosity and Permeability is lower. Especially, study on the alteration proceder of K-feldspar and it's products was carried out in this paper.
Fu Wanjun, Liu Wenbin. Study on the alteration of feldspar from clastic rock in Tarim Basin[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 84-89.
Citation:
Fu Wanjun, Liu Wenbin. Study on the alteration of feldspar from clastic rock in Tarim Basin[J]. Acta Sedimentologica Sinica, 1996, 14(S1): 84-89.