KINETIC-MODEL OF ZEOLITE PARAGENESIS IN TUFFACEOUS SEDIMENTS

被引：63

作者：

DIBBLE, WE ^{[1
]}

TILLER, WA ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT MAT SCI & ENGN,STANFORD,CA 94305

来源：

CLAYS AND CLAY MINERALS | 1981年 / 29卷 / 05期

关键词：

GEOCHEMISTRY - Reaction Kinetics - MINERALOGY - ROCKS;

D O I：

10.1346/CCMN.1981.0290502

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The sequency of mineral reactions involving zeolites and other authigenic phases in tuffaceous sedimentary rocks can be explained by growth- and dissolution-reaction kinetics. Kinetic factors may determine the specific authigenic phase which form and the temporal and spatial constraints on the solution composition during irreversible dissolution and growth reactions in glass-bearing rocks. The glass phase generates a high level of supersaturation with respect to variety of aluminosilicates in the pore fluid. The sequence of assemblages formed during a series of metastable reactions resembles on Ostwald step sequence. The formation of intermediate metastable phases can delay the attainment of equilibrium by as much as tens of millions of years. Refs.

引用

页码：323 / 330

页数：8

共 23 条

[1]

BERNER RA, 1980, EARLY DIAGENESIS

[2] NONEQUILIBRIUM WATER-ROCK INTERACTIONS .1. MODEL FOR INTERFACE-CONTROLLED REACTIONS [J].