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"Flügel-Kurse" (Karbonatmikrofazies) in Erlangen

Fluegelkurs Eyecatcher

 

Aufgrund der kontinuierlich gestiegenen Nachfrage wird der seit 1974 unter dem Namen "Flügel-Kurs" bekannte Karbonat-Mikrofazieskurs, der seit den neunziger Jahren im 2-jährigen Turnus stattfand, seit 2011 wieder jedes Jahr angeboten, und seit 2015 sogar 2x pro Jahr. Diese von der Fachgruppe Paläoumwelt des GeoZentrums Nordbayern (Universität Erlangen-Nürnberg) veranstalteten, international bekannten Kurse wurden bisher von über 1500 Kolleginnen und Kollegen sowohl aus Hochschulen als auch der Industrie besucht.

Im kommenden Jahr wird es wieder zwei einwöchige Kurse (Montag bis Freitag) geben, und zwar vom 6. bis 10. März und vom 13. bis 17. März 2017. Zu verschiedenen Themenkomplexen werden kurze Referate gehalten, die dann in gemeinsamen Übungen am Mikroskop mit Hilfe von Dünnschliffen und Lockersedimentproben intensiviert werden. Großer Wert wird auf die jüngsten Entwicklungen der Karbonatsedimentologie (z.B. Kaltwasserkarbonate, Tiefwasserriffe, Bioerosion, Cold-seep-Karbonate) gelegt. Das Erlanger GeoZentrum verfügt über eine weltweit einzigartige Sammlung an karbonatischen Dünnschliffen und Lockersedimentproben. Es besteht zudem die Möglichkeit, eigene Schliffe mitzubringen und mit den jeweiligen Spezialisten zu diskutieren.

Der Kurs beinhaltet voraussichtlich u.a.:

  • Grundlagen der Karbonatsedimentologie
  • Karbonatklassifikationen
  • Faziesmodelle (Warm-, Kalt- und Tiefwasser)
  • Mikrofaziesanalyse von Dünnschliffen
  • Pointcounting
  • Diagenese
  • Dolomite/Dolostones
  • Färbemethoden für Dünnschliffe
  • Fallbeispiele aus verschiedenen Zeiten der Erdgeschichte
  • Seep-Karbonate
  • Evaporates
  • Bioerosion


Der Kurs wird auf Englisch gehalten.


Achtung: Beide Kurse sind bereits vollständig ausgebucht. Falls Sie auf die Warteliste möchten bitte eine kurze Nachricht an Opens window for sending emailaxel.munnecke(at)fau(dot)de.

Der Kurs findet unter dem Schirm der Deutschen Geologischen Gesellschaft - Geologische Vereinigung e. V. (DGGV), und die zahlt Studenten, die Mitglieder sind oder während der Veranstaltung der DGGV beitreten, einen Zuschuss in Höhe von 75.- € (maximal jedoch nur für eine Veranstaltung pro Jahr). Der Zuschuss wird nach Zusendung einer Kursbescheinigung, eines Studiennachweises und der Bankverbindung an studentische Mitglieder und Neumitglieder überwiesen. Studentische Mitglieder der IAS können einen Reisekostenzuschuss beantragen (Deadline ist der 1. Januar 2017).

Eine bequeme Möglichkeit der Zimmerreservierung bietet die Homepage der Stadt (Stichwort "Leben" -> "Tourismus") unter Opens external link in new windowwww.erlangen.de.Die Jugendherberge sowie das Jugendgästehaus stehen 2017 leider nicht zur Verfügung. Es wird also dringend empfohlen, sich rechtzeitig um eine Unterkunft zu kümmern.

 

Fotos von den letzten Kursen: Opens internal link in current window2009 & Opens internal link in current window2011 & Opens internal link in current window2012 & Opens internal link in current window2013 & Opens internal link in current window 2014   & Opens internal link in current window 2014 China & Opens internal link in current window2015 /1  & Opens internal link in current window2015 /2 & Opens internal link in current window2016 /1  & Opens internal link in current window2016 /2  Opens internal link in current window2017 /1  Opens internal link in current window2017 /2

Pictures of the months

Photo of the month – October 2016: Thin section of recent beach sand from a skerry north of Göteborg (Sweden). The calcareous components are well-rounded, which is typical for beach sands, and consist mostly of fragments of bivalves, gastropods, and barnacles (e.g., top right corner). Fragments of crystalline rocks are not rounded due to their greater hardness. The purple components are fragments of the blue mussel (Mytilus edulis), which live in intertidal areas attached to rocks or other hard substrates

Photo of the month – September 2016: Cave pearl from a cave south-east of Nuremberg (Germany), with alternating aragonitic (dark) and calcitic (light) layers (lower half of the sample was stained with Feigel’s Solution; sample kindly provided by Prof. Gerd Tietz; crossed nicols, diameter of the pearl is 2.8 cm

Photo of the month – August 2016: Synthetic resin cast of a naked foraminifer syn-vivo bioerosion trace in a shell of the recent Nautilus macromphalus from New Caledonia (coloured SEM picture); see also: doi:10.1371/journal.pone.0125558

Photo of the month – July 2016: Crinoidal grainstone showing structures of pressure dissolution (“fitted fabric”) (Silurian, Gotland, Sweden)

Photo of the month – June 2016: Section through a large benthic nummulite foraminifer. Nummulites range from Palaeocene to Recent. They are a group of large discus- or coin-shaped benthic foraminifers with thick walls and are widespread in Eocene strata. In cross-polarised light they exhibit pronounced extinction bands resulting from the optically-radial calcite crystal structure of the walls (Eocene, Carinthia, Austria, crossed nicols, width of picture is 2.5 cm)

Photo of the month – May 2016: Cathodoluminescence microphotograph showing different generations of "geometric" calcite cements in a Late Miocene seep carbonate (Piedmont, Italy; width of picture ca. 2mm). Picture was kindly provided by Marcello Nataliccio, one of this year’s participants of the Flügel Course

Photo of the month – April 2016: Upper Jurassic (probably Oxfordian) partly dolomitised shallow-water peloidal grainstone from a section in Gümüşhane, NE Turkey. This picture demonstrates nicely how fabric-destructive dolomitisation can be. The picture was kindly provided by Merve Yildiz (Karadeniz Technical University, Geology Engineering Department, Trabzon, Turkey), one of this year’s participants of the Flügel Course.

Photo of the month – March 2016: Fascicular-optic calcite cements filling an ammonite chamber (Lower Jurassic, S-Germany, crossed nicols, width of picture ca. 12mm)

Photo of the month – February 2016: Upper Ordovician (Katian) completely recrystallised tetradiid corals from South China in transmitted light (left) and using a cathodoluminescence (CL) microscope (right). Tetradiid corals are supposed to consist originally of aragonite. In the CL image all fine structures of the skeleton are visible (width of picture ca. 0.5 cm).

Photo of the month – January 2016: Thin section through recent otolith (structure in the inner ear of a fish), surrounded by fragments of deep-water corals (left) and ophiuroids (brittle stars; right) (sample from 1 km water depth, western North-Atlantik)

Photo of the month – December 2015 (our Christmas photo): Artificial ooids with quartz grains as nuclei from decalcification device of a mineral water plant (crossed nicols)

Photo of the month – November 2015: Thin section of in situ crinoid holdfasts from a Silurian reef (Gotland; crossed nicols)

Photo of the month – October 2015: Thin section of modern Halimeda (green alga) from the Great Barrier Reef (Australia) with medullary utricles (inside) and surface utricles (width of picture ca. 3mm)

Photo of the month – September 2015: Allochthonous accumulation of partly pyritised fenestrate bryozoans. Although the fabric seems to be matrix supported (floatstone) it is in fact a grain supported fabric (rudstone) (Chihsia Formation, Permian, South China; width of picture is 4.5cm)

Photo of the month – August 2015: Calcite-dolomite marble from the Devonian of Austria. The thin section has been stained with Alizarin-S; calcite crystals are stained red whereas the xenotopic (nonrhombic) dolomite crystals remain unstained (with of picture ca. 1.3cm)

Photo of the month – July 2015: Plant remains (leaves, beechnuts, fragments of twigs, moss, etc.) recently encrusted by calcareous tufa in a little brook in the Franconian Alb (width of picture ca. 10cm).

Photo of the month – June 2015: Small calcitic microfossil (nannosphere) "floating" in pitted microspar. The sharp boundaries between fossil and surrounding crystals indicate that the microspar crystals were precipitated as cement and was not formed by aggrading neomorphism (cp. Sedimentology 1997, vol. 44, p. 977-990), (SEM photograph of polished and slightly etched rock surface; Högklint Beds, Wenlock, locality Irevik, width of picture ca. 55µm).

Photo of the month – May 2015: Pliocene coquina (composed mostly of reworked bivalve fragments). Some of the originally aragonitic shells have been dissolved, others have been recrystallised by fresh-water diagenesis, but still show remnants of their original shell structure (“ghost structures”). This rock was quarried for building stones by the Romans (Mallorca, Spain, thin section impregnated with blue epoxy resin, width of picture ca. 2.5cm)

Photo of the month – April 2015: Easter is approaching – and here comes our bryozoan-trilobite Easter egg from the Silurian of the UK (Much Wenlock Lst. Fm., Worcestershire, photo: Emilia Jarochowska; width of the egg is 0.7cm).

Photo of the month – March 2015: Miocene bryozoan-serpulid-bivalve reef from the Parathetys with very high initial porosity. The delicate framework was cemented early by peloidal and radiaxial-fibrous cements (Podolia, Ukraine, crossed nicols, width of picture 2cm).

Photo of the month – February 2015: Carboniferous cold seep carbonate with monospecific Ibergirhynchia (thin-shelled rhynchonellid brachiopod) community (Iberg, Harz Mountains, Germany, crossed nicols, width of picture is 2.8cm)

Photo of the month – January 2015: Thin section of modern carbonate gravel from an Atlantic sea mount off Gibraltar (ca. 90m water depth) consisting of fragments of bryozoans, gastropods, bivalves, barnacles, corals, serpulids, sessile forams (Miniacina miniacea), sea urchins, and volcanic rocks. Sample provided by Prof. André Freiwald, SAM.

Photo of the month - December 2014: "Living Star Sand". Subtropical carbonate sand composed mostly of large benthic foraminifera (Baculogypsina sphaerulata, Calcarina sp., etc.), typical for the Indo-Pacific realm. Minor components are gastropods, bivalves, green algae (Halimeda sp.), coral fragments, and the sessile foraminifera Homotrema rubrum. Our August-2013-photo is a thin section from the same sample (Hatoma Island, Japan; photo: Axel Munnecke; width of photo ca. 1.5cm).

Photo of the month - November 2014: Palaeokarst in the Early Palaeozoic of Sweden (Tomten quarry near Torbjörnstorp, Västergötland). The thin-section shows a critical interval in the succession including limestones of the Ctenopyge linnarssoni Trilobite Zone at the base, a thin bed of the upper Tremadocian Bjørkåsholmen Formation with abundant glauconite and reworked clasts in the middle part, and the Middle Ordovician Holen Formation at the top, all separated by two conspicuous karst surfaces. These disconformities reflect long periods of subaerial exposure and non-deposition in the area and are associated with substantial hiatuses. The Alum Shale Formation is truncated by a distinct irregular disconformity. It resembles “Schrattenkalk” in vertical section, and a karren system of cockling features (“Napfkarst”) in three-dimensional reconstructions. Width of photograph is 3cm. Sample originates from the Tomten core drilled in 2005, and stored at the Department of Geology, Lund University.

Picture of the month – October 2014: Lower surface of a stromatoporoid from the Silurian of Gotland. Components lying on the sea floor (tabulate corals, gastropods) were overgrown by the stromatoporoid. Width of the specimen is about 30 cm.

Photo of the month - September: Gypsum molds in intertidal laminite (early/primary dolomitic microbial mats), Homerian (middle Silurian) of Podolia, Ukraine.

Photo of the month - August 2014: Transition from an aragonitic (lower part) to calcitic (uppermost part) cave sinter (crossed nicols, width of figure ca. 2 cm; ?Miocene). Aragonitic cave sinters are very rare.

Photo of the month – July 2014: Silurian beach rock consisting of reworked fragments of Coenites and solenoporacean alga. Note the nice acicular gravitational marine cements, indicating cementation in the marine vadose zone (Silurian, Gotland, collection of the Institute of Geology, Tallinn University of Technology).

Photo of the month - June 2014: Thin section of a lophophyllid coral (Rugosa) from the Finis Shale (Virgilian, Upper Carboniferous) in Northern Texas, USA. The preservation is excellent due to deposition in the dense shale. In the septa and the central axis the centers of calcification are still well visible.

Photo of the month - May 2014: Beach gravel of a hypersaline lagoon dominated by gastropods (mostly Cerithium; Andros Beach, Bahamas)

Photo of the month - April 2014: Crystalline dolomite in a stained thin section from the drilling site "Moosburg SC4 4". An example of how dolomite would look like in the 'Bavarian Molasse' approximately 3000 m below Munich. In blue: matrix porosity and permeability. Note the zonation in the crystals indicating burial diagenesis and the styloliths pointing to a certain amount of pressure. Age: Malm (Kimmeridgian).

Photo of the month – March 2014: Mollusc shell densely bored by cyanobacteria and chlorophyte algae from the Pennsylvanian Buckhorn Asphalt Quarry Lagerstätte in Oklahoma, USA. Note that the brownish coloration derives from hydrocarbons that infiltrated sediment and fossils at the time or short after deposition. (Figure 3C in Wisshak et al. 2008, Evolutionary implications of an exceptionally preserved Carboniferous microboring assemblage in the Buckhorn Asphalt Lagerstätte (Oklahoma, USA).

Photo of the month - February 2014: Plio-/Pleistocene parautochthonous coral rubble on a Miocene escarpment showing the deep-water coral Desmophyllum cristagalli and large gastropods. In the transverse section of C. cristagalli the centres of calcification (dark bands) are clearly visible. Due to the impermeable, extremely fine-grained matrix the corals and the gastropods still exhibit their primary aragonitic shell mineralogy. In the matrix, fragments of echinoderms (sea urchins and brittle stars), benthic and planktic foraminifers, pteropod fragments, and serpulids are present (Calabria, southern Italy)

Photo of the month - January 2014: Growth increments of a recent rhodolith from the high Arctic of Svalbard, consisting of the coralline red alga Lithothamnion glaciale Kjellman, 1883.

Photo of the month - December 2013: Advent season is starting today with the opening of Christmas markets all over Gemany... time to present our Christmas thin section! ... Aragonitic pisoids with fringes of acicular aragonitic cement and large open pores. The rock is called "Karlsbad Sprudelstein"; it precipitated in hot, mineral-rich springs situated along tectonic faults (crossed nicols; width of picture is 1.6cm; Karlovy Vary, Czech Republic).

Photo of the month - November 2013: Cephalopod coquina from the Upper Carboniferous Buckhorn Asphalt Quarry Lagerstätte (Oklahoma, USA) - Two orthoconic nautiloid cephalopod specimens with preserved cameral deposits.

Photo of the month - October 2013: Recent beach gravel from the northern Adriatic Sea (Eraklea Mare, Italy) with abundant gastropods, bivalves, scaphopods (tusk shells), crustaceans, and serpulids. In this sample, remnants of organisms from different environments are mixed, e.g. epifaunal species from a rocky shore and sea-grass meadows as well as infaunal organisms.

Photo of the month - September 2013: Upper Cretaceous non-tropical bioclastic rudstone consisting of fragments of sea urchins (with syntaxial cements), bryozoans, oysters, coralline algae, and ?balanids (and subordinate quarz grains). This sediment was deposited in a high energy environment nearby a crystalline skerry (Ignaberga, S-Sweden).

Photo of the month - August 2013: Thin section of a recent tropical carbonate sand, the so-called "living star sand". It is composed of large symbiont-bearing benthic forams (Baculogypsina, Calcarina, Peneroplis), and reworked fragments of coralline algae, Halimeda, and corals (Hatoma Island, Japan; width of picture ca. 1cm).

Photo of the month - July 2013: Conodont (phosphatic mineralogy indicated by the brownish coloration) in a thin section from the upper Silurian of Podolia, Ukraine. Published in Jarochowska & Kozlowski (2013): doi: 10.1007/s10347-013-0370-4

Photo of the month - June 2013: Crinoidal limestone with syntaxial cements and remnants of an early marine cement (probably HMC). Högklint Formation, Wenlock, Gotland.

Photo of the month - May 2013: Congomerate from the Pennsylvanian Buckhorn Asphalt Quarry, Oklahoma: on the right well rounded terrigeneous quartz grains; main section is part of a clast containing e.g. foraminifers, echinoderm remains, bioclasts and ooids.

Photo of the month - April 2013: Bioturbated lagoonal limestone with abundant phylloid algae and a dasycladalean alga (Sinoporella leei) from the Permian Chihsia Formation (South China) (cp. Bucur et al. 2009, Geobios vol.42).

Photo of the month - March 2013: Overturned, parautochthonous Coenites bafflestone (tabulate coral) from the Silurian Tofta Formation (Gotland, Sweden). Note that all geopetals are upside down

 

Silurian, Gotland
Pliocene, Mallorca
Eocene, Austria