Reported in this paper are the use of Changping eurite in crystalline glaze body.On the basis of SEM,XRD and chemical composition analysis,Changping eurite is an ultra hypabyssal acidite.Main chemical compositions of ...Reported in this paper are the use of Changping eurite in crystalline glaze body.On the basis of SEM,XRD and chemical composition analysis,Changping eurite is an ultra hypabyssal acidite.Main chemical compositions of Changping eruite are SiO 2 75%,K 2O+Na 2O>8%and Al 2O 3 13 5%.There are quartz, feldspar,albite,opaque minerals and pyroxene biotite in it.The composition is familiar to some china stone.The body which contains 40%～65% Changping eurite has the character of feldspathic porcelain.In firing temperature 1250～1300℃,the body is nicely combined with some crystalline glaze.展开更多
Petrographic analysis combined with various techniques, such as scanning electron microscopy and X-ray diffraction, was used to assess the timing of growth and original mineral cements, the controls on reservoir and r...Petrographic analysis combined with various techniques, such as scanning electron microscopy and X-ray diffraction, was used to assess the timing of growth and original mineral cements, the controls on reservoir and reservoir quality of the fourth member sandstones of Shahejie formation (Es4). The Es4 sandstones are mostly arkose and lithic arkose, rarely feldspathic litharenite, with an average mass fraction of quartz 51.6%, feldspar 33.8% and rock fragments 14.6% (Q51.6F33.8R14.6). They have an average framework composition (mass fraction) of quartz 57.10%, K-feldspar 5.76%, sodium-calcium feldspar 13.00%, calcite 5.77%, dolomite 5.63%, siderite 0.95%, pyrite 0.30%, anhydrite 0.04%, and clay mineral 11.46%. The diagenentic minerals typically include kaolinite, illite-smectite (I/S), illite, chlorite, authigenetic quartz and feldspar, and carbonate and pyrite. Es4 sandstone has undergone stages A and B of eodiagenesis, and now, it is experiencing stage A of mesodiagenesis. Reservoir quality is predominantly controlled by the mechanical compaction, for example, 45.65% of the original porosity loss is related to compaction. The original porosity loss related with cementation is only 26.00%. The reservoir quality is improved as a result of dissolution of feldspar, rock fragment and so forth. The porosity evolved from dissolution varies from 3% to 4%.展开更多
文摘Reported in this paper are the use of Changping eurite in crystalline glaze body.On the basis of SEM,XRD and chemical composition analysis,Changping eurite is an ultra hypabyssal acidite.Main chemical compositions of Changping eruite are SiO 2 75%,K 2O+Na 2O>8%and Al 2O 3 13 5%.There are quartz, feldspar,albite,opaque minerals and pyroxene biotite in it.The composition is familiar to some china stone.The body which contains 40%～65% Changping eurite has the character of feldspathic porcelain.In firing temperature 1250～1300℃,the body is nicely combined with some crystalline glaze.
基金Project(2006AA09Z336) supported by the National High-Tech Research and Development Program of China
文摘Petrographic analysis combined with various techniques, such as scanning electron microscopy and X-ray diffraction, was used to assess the timing of growth and original mineral cements, the controls on reservoir and reservoir quality of the fourth member sandstones of Shahejie formation (Es4). The Es4 sandstones are mostly arkose and lithic arkose, rarely feldspathic litharenite, with an average mass fraction of quartz 51.6%, feldspar 33.8% and rock fragments 14.6% (Q51.6F33.8R14.6). They have an average framework composition (mass fraction) of quartz 57.10%, K-feldspar 5.76%, sodium-calcium feldspar 13.00%, calcite 5.77%, dolomite 5.63%, siderite 0.95%, pyrite 0.30%, anhydrite 0.04%, and clay mineral 11.46%. The diagenentic minerals typically include kaolinite, illite-smectite (I/S), illite, chlorite, authigenetic quartz and feldspar, and carbonate and pyrite. Es4 sandstone has undergone stages A and B of eodiagenesis, and now, it is experiencing stage A of mesodiagenesis. Reservoir quality is predominantly controlled by the mechanical compaction, for example, 45.65% of the original porosity loss is related to compaction. The original porosity loss related with cementation is only 26.00%. The reservoir quality is improved as a result of dissolution of feldspar, rock fragment and so forth. The porosity evolved from dissolution varies from 3% to 4%.
