| Autor: |
GOFF, FRASER, ZIMMERER, MATTHEW J., GOFF, CATHY J. |
| Předmět: |
|
| Zdroj: |
New Mexico Geological Society Fall Field Conference Guidebook; 2024, p299-302, 4p |
| Abstrakt: |
Goblin Colony is a recently described area in the southern Jemez Mountains that contains 0.15 km2 of zeolite-altered Tshirege Member of the Bandelier Tuff. The altered tuff (ignimbrite) fills a southwest-trending paleovalley in which preexisting basal-contained sediments provided water for the alteration of the tuff. The southeast side of the paleovalley is bounded by a prominent trachydacite to trachyandesite dike and plug zone that formed a hydrologic barrier to fluid flow. In this short paper, we describe the intrusions, the results of recent 40Ar/39Ar dates on the intrusions, and their impact on paleohydrology and low-temperature alteration of the tuff in the Goblin Colony. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
