Abstract
Single mineral grains in a suite of Cretaceous (85-90 Ma) volcanic sedimentary rocks were analyzed using the microbeam-PIXE technique to understand fundamental geological processes responsible for micro-scale variation in elemental composition across mineral zones, twinning, cleavage planes, fractures and grain boundaries. Distributions of major and trace elements show distinct geochemical features indicative of a specific geological setting and a subsequent diagenetic process in these volcanic sediments. Examples of mineral zoning, microstructures of variable chemistry and post-depositional fluid flow are discussed using the data on feldspar group of minerals.
| Original language | English |
|---|---|
| Pages (from-to) | 587-591 |
| Number of pages | 5 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 109-110 |
| DOIs | |
| State | Published - Apr 1996 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation