Ore structures and genesis of the lead-zinc-deposit Tynagh, Ireland

  title={Ore structures and genesis of the lead-zinc-deposit Tynagh, Ireland},
  author={Dirk Riedel},
  journal={Geologische Rundschau},
  • D. Riedel
  • Published 1 June 1980
  • Geology
  • Geologische Rundschau
ZusammenfassungAus der Lagerstätte Tynagh werden zahlreiche sedimentäre, diagenetische und organogene Erzstrukturen vorgestellt. Verschiedene Faktoren deuten auf die Existenz einer N-S-Struktur. Der Aufstiegsweg der metallführenden Lösungen ist offenbar an den Kreuzungspunkt der E-W verlaufenden North Tynagh Fault mit dieser N-S-Struktur gebunden. Die Ausfällung der Erzminerale wird auf das Milieu im Flankenbereich eines karbonatischen Schlamm-Bioherms zurückgeführt. Absterbende Lebewesen und… 

Extensional faults that localize Irish syndiagenetic Zn-Pb Deposits and their reactivation during Variscan compression

  • M. Hitzman
  • Geology
    Geological Society, London, Special Publications
  • 1999
Abstract The syndiagenetic Zn-Pb deposits of south-central Ireland, which are hosted by Lower Carboniferous carbonate sediments, occur along generally northeast trending, segmented normal fault

Constraints on the Origins of Fluids Forming Irish Zn-Pb-Ba Deposits: Evidence from the Composition of Fluid Inclusions

The numerous Zn-Pb deposits in the Irish midlands, together with the quantity and grade of the ore, make this a world-class base metal province. Despite significant exploration and research, there is

K–Ar ages of clay concentrates from Irish orebodies and their bearing on the timing of mineralisation

ABSTRACT The K–Ar ages of 117 clay concentrates from samples associated with mineral deposits in Ireland indicate that most, if not all of the major ore deposits were formed during Carboniferous

Searching for the “next big thing”: Examining the potential for new feeder zone mineralisation in the western Navan area, County Meath, Ireland

This study focuses on the Navan Deposit, County Meath, Ireland – a carbonate-hosted Zn-Pb sulphide deposit originally comprising 110Mt @ 8% Zn and 2% Pb, prior to depletion by mining. Navan belongs

Elektronenmikroskopische Untersuchungen an Sphäroiden aus dem Erz der Pb-Zn-Lagerstätte Tynagh, Irland

Spheroids of some μm size are described from the lead-zinc-ore of Tynagh, Ireland. The main element composition of the spheroids is Si, Zn, S, Al, K, Fe with some Ca and Mg in order of decreasing

The effects of temperature and pressure on the stability of mineral colloids

The stability of mineral colloids is well understood through numerous theoretical, experimental, and microscopic approaches. Nearly all of these, however, are for colloids at ambient or near-ambient

Sediment geochemistry and base metal sulphide mineralisation in the Quidong area, Southeastern New South Wales, Australia

Geochemically anomalous, pyritic sediments occur directly above a Mid Silurian unconformity in the Quidong area of southeastern New South Wales. The composition of these sediments reflects derivation



Die rezente hydrothermal-sedimentäre Lagerstätte Atlantis-II-Tief im Roten Meer

ZusammenfassungDie in Entstehung befindliche hydrothermal-sedimentäre Lagerstätte Atlantis-II-Tief im Roten Meer wurde in den Jahren 1969, 1971 und 1972 von den Forschungsschiffen Wando River und

The geological environment of post-Caledonian base-metal mineralization in Ireland

The Dlnantian host and wall rocks to the Ballyvergin, Gortdrum, Oola, Carrickittle and Tynagh base-metal deposits were analysed for a variety of trace elements with a view to establishing a local

Schwefelisotope im marinen Kreislauf und das δ34 S der früheren Meere

ZusammenfassungDurch Isotopenfraktionierung bei der bakteriellen Reduktion marinen Sulfats enthalten die Sedimente im Mittel einen Überschuß an32S (δ34S ≈s − 5‰), während32S im marinen Sulfat

Resedimentbreccien und ihre möglichen Zusammenhänge mit Zn-Pb-Konzentrationen in mitteltriadischen Sedimenten der Gailtaler Alpen (Kärnten)

In drei Horizonten der Mitteltrias, namlich im oberen Wettersteindolomit sowie in der Unteren und Oberen Karbonatserie der Raibler Schichten treten grobklastische Sedimente auf, die auf Grund ihres

Framboidal sulphides precipitated synthetically

Framboidal sulphides of iron, copper, lead, zinc, nickel and arsenic have been precipitated from aqueous solutions by hydrogen sulphide in the absence of any bacterial agency. The formation of

The structure and origin of the Waulsortian (Lower Carboniferous) “reefs” of west-central Eire

  • A. Lees
  • Geology
    Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
  • 1964
The structures into which the Irish Waulsortian limestones are organized have been regarded as reefs. They are re-interpreted as carbonate mudbanks. Their growth mechanism has been deduced from a

The Waulsortian "Reefs" of Eire: A Carbonate Mudbank Complex of Lower Carboniferous Age

  • A. Lees
  • Geology
    The Journal of Geology
  • 1961
The main features of the Waulsortian (Upper Tournaisian and Lower Vise'an) carbonate mudbank complex of Eire are described and the paleogeography outlined. The distribution and lithological

Lower Carboniferous cherty ironstones at Tynagh, Ireland

Chert-hematite iron formation, remarkably similar to the Lake Superior iron formations, is interbedded with and grades laterally into lower Carboniferous limestone. Samples representing 78 feet of

The Northgate base-metal deposit at Tynagh, County Galway, Ireland; a preliminary geological study

Primary sulfide ore, containing galena, sphalerite, pyrite, subordinate chalcopyrite and tetrahedrite, and a few ounces of silver per ton, underlies a body of black sulfide mud of supergene origin.