Microstructural evolution of syntaxial veins formed by advective flow

Research Article| March 01, 2004 Microstructural evolution of syntaxial veins formed by advective flow Christoph Hilgers; Christoph Hilgers 1 Geologie–Endogene Dynamik, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen D-52056, Germany Search for other works by this author on: GSW Google Scholar Karin Dilg-Gruschinski; Karin Dilg-Gruschinski 1 Geologie–Endogene Dynamik, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen D-52056, Germany Search for other works by this author on: GSW Google Scholar Janos L. Urai Janos L. Urai 1 Geologie–Endogene Dynamik, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen D-52056, Germany Search for other works by this author on: GSW Google Scholar Author and Article Information Christoph Hilgers 1 Geologie–Endogene Dynamik, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen D-52056, Germany Karin Dilg-Gruschinski 1 Geologie–Endogene Dynamik, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen D-52056, Germany Janos L. Urai 1 Geologie–Endogene Dynamik, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen D-52056, Germany Publisher: Geological Society of America Received: 15 Jul 2003 Revision Received: 31 Oct 2003 Accepted: 06 Nov 2003 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2004) 32 (3): 261–264. https://doi.org/10.1130/G20024.1 Article history Received: 15 Jul 2003 Revision Received: 31 Oct 2003 Accepted: 06 Nov 2003 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Christoph Hilgers, Karin Dilg-Gruschinski, Janos L. Urai; Microstructural evolution of syntaxial veins formed by advective flow. Geology 2004;; 32 (3): 261–264. doi: https://doi.org/10.1130/G20024.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Veins are common in Earth's crust, and are formed by a wide range of processes, which lead to crystal growth in dilation sites. The first-order processes in vein formation have been identified, but it is much less clear how these can be diagnosed from field studies. In order to better understand the microstructural evolution during vein growth, we grew veins of analogue material [alum, KAl(SO4)2·12H2O] in a transmitted-light cell from an advecting supersaturated fluid. Real-time observation shows the effects of flow rate and supersaturation on the evolving microstructure: (1) along-vein trends in growth rate caused by decreasing supersaturation, and (2) growth competition between clear crystals in the absence of nucleation and primary fluid inclusions. Although the overall trends in growth rate are in agreement with previous work, the local effects at the scale of individual grains reported here are less well understood; these new data form a basis for better interpretation of natural microstructures. To explore the possible effects of experimentally observed processes during vein growth, we simulate the growth kinetics of a quartz vein at various conditions of advective flow in Earth's crust. Results show that in general the along-vein changes in growth rate occur at length scales much larger than a typical outcrop. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.