Inhaltsbereich
Field projects
Field projects cover a variety of different metamorphic and igneous terranes and associated rock types on a planet wide scale. In general, many of these projects are closely integrated with experimental work involving silicate, phosphate, oxide, and sulfide minerals.
Field projects include:
- Granulite to amphibolite facies traverse of lower late Archean crust, Shevaroy Block, Tamil Nadu, south India
- Late Archean granulite facies crust from the Nilgiri Hills block and Namakkal Hills Blocks, south India
- Orthopyroxene-bearing and clinopyroxene-bearing localized dehydration zones, Söndrum stone quarry, Halmstad, Kattegat coast, southwest Sweden
- Varberg-Torpa charnockite-granite association, Varberg, Kattegat coast, southwest Sweden
- Low temperature, regional metasomatism associated with copper deposits, Upper Peninsula, Michigan, USA
- Charnockite patches in the Weinberg granite, northern Austria
- Calcsilcate rocks and leucosomes, Halmstad, Kattegat coast, southwest Sweden
- Apatite, biotite, and clinopyroxene as tracers for metasomatic processes in nepheline clinopyroxenites of Uralian-Alaskan-type complexes in the Ural mountains, Russian Federation
- Kiruna-type magnetite-apatite ore deposits from Kiruna, northern Sweden
- Kiruna-type magnetite-apatite ore deposits from Grängesberg, central Sweden
- Kiruna-type magnetite-apatite ore deposits from the Bafq Region, central Iran
- Kiruna-type magnetite-apatite ore deposits from Mineville, Adirondacks, New York, USA
- Kiruna-type magnetite-apatite ore deposits, Pea Ridge, Arkansas, USA
- Studies of alumino-silicate minerals and apatite, Bamble Sector, southern Norway
- Alkaline-carbonatite magmatism, Alnö, Sweden
- Studies of accessory minerals, Ivrea-Verbano Zone, northern Italy
- Regional scale, pluton-driven, high-grade metamorphism in the Archean Minto block, northern Superior province, Canada
- Granulite-facies xenoliths from the Eger rift zone, northern Czech Republic
© GFZ Potsdam- Figure 1a: Photograph showing a pegmatoid dyke and surrounding orthopyroxene-bearing dehydration zone surrounded by a regional migmatised granitic gneiss, Söndrum stone quarry, Halmstad, southwest Sweden. Also shown is the approximate location of the sample traverse.
Figure 1b: Plot of amphibole chemistry as a function of distance (cm) along the traverse outwards from the centre of the pegmatoid dyke for F and Cl. Dotted line designates the approximate boundary between the dehydration zone and the granitic gneiss. The first symbol in the plot designates the boundary with the pegmatoid dyke. Note the diffusive behavior of the F vs. the advective behavior of the Cl. See Harlov et al. (2006) J Petrol 47, 3 -33.
© GFZ Potsdam- Figure 2a: Stylized sketch of a clinopyroxene-rich pegmatoid vein, surrounding coarsened granitic gneiss, and regional migmatised granitic gneiss (along with sample locations) from the Söndrum stone quarry, Halmstad, southwest Sweden. The clinopyroxene-rich pegmatoid vein is located opposite the orthopyroxene-bearing dehydration zone (Fig. 1) in the quarry.
Figure 2b: Plot of amphibole chemistry along the traverse centered on the the clinopyroxene-rich pegmatoid vein for FeO and F (cf. Figure 2a). Dotted line designates the approximate boundary between the pegmatoid vein and coarsened granitic gneiss. Note the diffuse behavior of both elements.
Contact: Daniel Harlov