Veins in the Lockport dolostone: Evidence for an Acadian fluid circulation system

Abstract

Research Article| November 01, 1992 Veins in the Lockport dolostone: Evidence for an Acadian fluid circulation system Michael R. Gross; Michael R. Gross 1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Search for other works by this author on: GSW Google Scholar Terry Engelder; Terry Engelder 1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Search for other works by this author on: GSW Google Scholar Simon R. Poulson Simon R. Poulson 1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Search for other works by this author on: GSW Google Scholar Author and Article Information Michael R. Gross 1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Terry Engelder 1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Simon R. Poulson 1Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1992) 20 (11): 971–974. https://doi.org/10.1130/0091-7613(1992)020<0971:VITLDE>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Michael R. Gross, Terry Engelder, Simon R. Poulson; Veins in the Lockport dolostone: Evidence for an Acadian fluid circulation system. Geology 1992;; 20 (11): 971–974. doi: https://doi.org/10.1130/0091-7613(1992)020<0971:VITLDE>2.3.CO;2 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 The orientation and spatial distribution of veins in the Lockport dolostone attest to a fluid circulation system active during the Acadian orogeny in western New York and southern Ontario. Outcrops east of the Clarendon-Linden fault zone are cut by a prominent east-northeast systematic calcite-filled vein set, whereas these systematic veins are absent west of the fault zone, except in two quarries. Systematic veins display distinct characteristics: the mean vein orientation rotates clockwise from 067° in the east to 086° farther west, veins do not propagate into the basal Lockport Group, and calcite vein δ18OPDB values are significantly lighter to the east of the Clarendon- Linden fault zone. Maximum horizontal stress (SH) trend lines drawn parallel to the strike of the systematic veins are incompatible with SH inferred from Alleghanian plateau and other post-Paleozoic structures. However, because east-west SH trend lines are compatible with an Acadian tectonic event in western New England, our interpretation is that systematic veins in the Lockport Group are a cratonward signature of the Acadian orogeny. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.