Abstract
The zeolite tuffs from Lake To jo in “Paleo Setouchi Region” were studied compared with those from Tamatsukuri Hot Spring Area in “Green Tuff Region”. The materials were from Yashiro and Tojo cho, Kato-gun, Hyogo Prefecture. The zeolite tuffs develop in Ogo, Yokawa and Arino formations in Kobe groups of the Miocene age, and are covered by weathered conglomerate of the Alluvial age called Osaka groups. The zeolite tuffs mainly consist of clinoptilolite and contain no mordenite. Purified material and ion-exchanged materials were investigated by means of X-ray diffractometry, chemical and thermal analyses, especially by “Differential Scanning Calorimetry” for the calculations of dehydration energy. It was found that the present zeolite in Lake Tojo are malcrystallized state and are supposed to have been formed in the shallower part than those from Tamatsukuri Hot Spring Area. The present zeolite tuff may have beem formed by the reaction of diageneses of acidic volcanic ash, such as rhyolite and dacite, with thermal water like hot spring in this area.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
