Table 4.

Summary of the main features of zeolite occurrences in the studied deposits. Unit Zeolite minerals Main mode of Main sequences and associations*

Zeolite minerals
UnitDominantOthersMain mode of occurrenceMain sequences and associations*
* → and + signs as in Tables 2 and 3 (right column)
Fluvial deposits
Bed IVanalcimephillipsiteporesanalcime + illuvial clay or sparitic carbonates
 phillipsite + analcime
 illuvial clay → phillipsite
Bed IIIanalcimephillipsite, chabazite, natroliteporesanalcime/chabazite → natrolite
 various zeolites → illuvial clay or sparitic carbonates
 illuvial clay → analcime
Bed IIanalcimephillipsite, chabaziteporesanalcime → phillipsite
 analcime/phillipsite → illuvial clay or sparitic carbonates
 illuvial clay → analcime/phillipsite
 sparitic carbonates → phillipsite
Lake-margin deposits
Bed IIchabaziteerionite, phillipsite, clinoptiloliteporeschabazite → erionite
 chabazite → clinoptilolite
 chabazite → kenyaite
Bed Ichabazitephillipsitevolcanic debris, groundmass, poressmectite → chabazite → phillipsite
 phillipsite → sparitic carbonates
 chabazite + authigenic clay