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| of magmatic ‘water’ in the Klokken layered syenite intrusion, South Greenland Ian Parsons Transactions...of magmatic ‘water’ in the Klokken layered syenite intrusion, South Greenland. Transactions of the Royal...of magmatic 'water' in the Klokken layered syenite intrusion, South Greenland Ian Parsons ABSTRACT: The...The layered syenites in the Klokken intrusion consist of horizons of fine-grained, granulaf-textured ferroaugite...(e.g. pyroxene-*amphibole; sanidine +magnetite-*biotite), causes oxidation (e.g. irontitanium oxides), |
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| Minor Element Chemistry of Alkali Feldspars in the Klokken Layered Syenite Series by R. A. MASON, 1 I. PARSONS...syenite series in the KJokken gabbro-syenite complex, South Greenland have been measured using an ion microprobe...layered series of the Klokken gabbro-syenite complex in the Gardar province, South Greenland. The major element...AB9 IAS, Scotland GEOCHEMISTRY OF THE KLOK.KEN COMPLEX 953 circumventing the difficulty of achieving...Stockholms Universitet on September 10, 2015 The Klokken intrusion is an oval zoned stock, 4 x 3 km across |
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| Differentiation in the Proterozoic Gjerstad-Morkeheia Complex of South Norway K.P. Milne and I.C. Starmer Department...4NS, England Abstract. The Gjerstad-Morkeheia Complex contains a se- ries of highly differentiated,...suites (e.g. in the Gardar Province of South Greenland). The intrusions were anorogenic and emplaced...isolated mass (named here the 'GjerstadMorkeheia Complex') which differs from rocks in the surrounding region...trending mylonite zone. The GjerstadMorkeheia Complex intruded the 'Telemark Basement Gneisses' with |
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| edenitic hornblende, salitic pyroxene, magnesian biotite, magnetite and sphene; (B) oligoclase, manganoan...they had a rather varied mineralogy, ranging from biotite-hornblende bearing types, to types containing typical...rare, but from the Eyjat]allaj~Skull volcanic complex in southern Iceland some xenoliths of quartz-syenite...four types on the basis of their mineralogy: (A) Biotite-hornblende bearing granophyres. The mafic silicates...pyroxene and ilmenite, but have now been altered to biotite, edenitic amphibole, secondary pyroxene and magnetite |
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| is a group of non-alkaline subsolvus hornblende-biotite-bearing granites. Associated with the hypersolvus...Elsonian layered basic intrusions of the Nain Complex. One of these, a crudely layered mass which ranges...eulite, ferrosilite-hedenbergite, and annite rich biotite. In the subsolvus granites, amphiboles range in...to actinolite and also coexist with annite-rich biotite. Whole-rock and mineral isotopic data for the different...correlated with Gardar igneous activity in south Greenland. The petrogenesis of the peralkaline suite is |
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| Springer-Verlag1988 Sidewall crystallization in the Klokken intrusion: zoned ternary feldspars and coexisting... Abstract. The syenitic layered series in the Klokken intru- sion is surrounded by a zone (~500 m thick)...drill. Mafic silicates (olivine, clinopyroxene, biotite) show inward evolution in Fe/(Fe + Mg) across the...rims, which are usually optically abrupt, involve complex mixed zones on the gm-scale, consistent with arrested...Introduction The Klokken syenite complex, in the Proterozoic Gardar alkaline province in South Greenland (reviewed |
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| in a differentiated alkaline complex: Kfingnfit Fjeld, South Greenland D. STEPHENSON Institute of Geological...3JW ABSTRACT. Kt~ngmit Fjeld is an intrusive complex resulting from three intrusive events involving...associated granites) and biotite (annite3~ to annite98.5). KONGNAT FJELD, south Greenland, is a deeply dissected...1971). While dominantly syenitic, the alkaline complex exhibits an essentially continuous spectrum of...beneath a cover estimated at 4-5 km thickness. The complex is the westernmost known in the Gardar alkaline |
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| Abstract. Alkali feldspars in the Klokken layered syenite (South Greenland) are optically either coarse,...of normal microscope work. In the case of the Klokken intrusion, described here, their occurrence is...of the cryptoperthites in the relatively large Klokken pluton are in the same range as those in lavas...coarsening rates obtained experimentally, the Klokken alkali feldspars should be much coarser microperthites...of the Klokken Layered Series The internal complexities and mineralogy of the Klokken complex (South |
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| The Klokken Gabbro-Syenite Complex, South Greenland: Cryptic Variation and Origin of Inversely Graded...1977; in revisedform 2 June 1978) ABSTRACT The Klokken stock has an outer sheath of vertically banded...the junctions. The series is cut by a sheet of biotite-syenodiorite and finally by quartzsyenite aplites...fractionated syenites in the layered series. The Klokken chamber was lined by gabbro with only limited in...Scotland 654 I. PARSONS INTRODUCTION T H E Klokken intrusion is a small stock (Fig. 2), predominantly |
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| syenogabbro occurs 3 m inside the contact of the Klokken gabbro-syenite stock. It contains plagioclase,...relatively low pressure environment, the Klokken gabbro-syenite complex (Parsons 1979, 1981). The ternary...margin of the Precambrian (Gardar) Klokken stock, South Greenland, some 3 m in from its sharp contact...the map given as Fig. 2 in Parsons 1979). The Klokken intrusion is an oval body, 4 x 3 km, largely of...contain variable amounts of alkali feldspar. In the complex as a whole there is a continuum between gabbro |
 | Upton, B. G. J., Macdonald, R., Odling, N., Rämö, O. T., Bagiński, B. (2013) Kûngnât, revisited. A review of five decades of research into an alkaline complex in South Greenland, with new trace-element and Nd isotopic data. Mineralogical Magazine, 77 (4) 523-550 doi:10.1180/minmag.2013.077.4.11 | Journal (article/letter/editorial) |
| decades of research into an alkaline complex in South Greenland, with new trace-element and Nd isotopic... The Kûngnât Complex (12751.8 Ma) in the Gardar Alkaline Province, South Greenland, cuts Archaean...intercumulus phases include alkali amphibole, biotite, quartz and calcite). In the well dissected earlier...peralkaline granites include the Zomba–Malosa complex, Chilwa alkaline province, Malawi (Woolley and...graben, Norway (Oftedahl, 1978), the Evisa-Calasima complex, Corsica (Bonin, 1988), plutons of the Velasco |
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| study of a suite of alkali feldspars from the Klokken syenite intrusion (U-Pb age 1166 + 4 Ma) which...rocks. The Klokken layered syenite in the Proterozoic Gardar Province of South Greenland (PARSONS,1979;...These powerful independent constraints render the Klokken intrusion ideal for investigating the problem of...intergrowths, as they affect the fel~pars from the Klokken intrusion, are summarised in Fig. 1. TEM photomicrographs...on Fig. 1) is dependent on cooling rate, In the Klokken intrusion X1 increases logarithmi&ly downwards |
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| by their high temperature, by the loss of minor biotite up-stratigraphy in the intrusion, and the absence...is red oxy-biotite (Fig. 3). The data of Huntington show a dramatic decrease in modal biotite toward the...the syenite. (Color online). Table 1. Figure 3. Biotite mode in the Upper Zone of the Kiglapait intrusion...The decline above ~98 PCS clearly indicates that biotite and its water are not conserved components of the...Kiglapait intrusion. The Gardar Province of southwest Greenland has considerable affinities with coastal Labrador |
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| Mid-Proterozoic alkaline magmatism in southern Greenland" the Gardar province B. G. J. Upton & C. H. Emeleus...Introduction Intra-plate alkaline magmatism in southern Greenland in the period 1320-1120 Ma gave rise to the Gardar...Proterozoic time was composed of North America, Greenland and Europe (Piper 1982), whose tectono-magmatic...G. J. Upton & C. H. Emeleus In the southern Greenland area of the Proterozoic supercontinent it is suggested...anorthosites, ferrosyenites developed in southern Greenland from the crystallization of benmoreitic residual |
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| Metallogeny of South Greenland: A review of geological evolution, mineral occurrences...Jochen, Thrane, Kristine, Metallogeny of South Greenland: A review of geological evolution, mineral occurrences...pertain. ACCEPTED MANUSCRIPT Metallogeny of South Greenland: A review of geological evolution, mineral occurrences...Thrane IP The Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark...steenfelt@gmail.com; ast@geus.dk NU Abstract South Greenland has been the site of historic mining of cryolite |
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| DECEMBER 1985 The Tugtut6q older giant dyke complex: mineralogy and geochemistry of an alkali gabb... association in the Gardar Province of South Greenland B. G. J. UPTON Grant Institute of Geology, University...Edinburgh EH9 3JW ABSTRACT. The Older Giant Dyke Complex is a differentiated alkaline intrusion of Proterozoic...and later-crystallized augite (Di69Hdz7Ac,) and biotite (Annitea2). The coexisting Fe-Ti oxides indicatefo...absent from the most differentiated rocks, whereas biotite occurs throughout the entire group in the range |
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| a teschenite sill in Scotland, the Klokken syenogabbro in Greenland, and a granulite-facies metapelite...160:327–337 Slowly cooled magmatic rock (Klokken syenogabbro, Greenland) Such a two-perthite rock is the slowly...(syenogabbro) from the Klokken complex, South Greenland. The general petrology of the Klokken intrusion has been...The rock occurs 3 m inside the contact of the Klokken gabbro-syenite stock and contains plagioclase,...Compositions of the feldspars from the Klokken syenogabbro, South Greenland (Parsons and Brown 1983). Pl denotes |
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| VARIATION WITHIN THREE ALKALINE COMPLEXES IN SOUTH GREENLAND B R I A N G. J. U P T O N , J O H N E. T H O M...variation within three alkaline complexe~ in south Greenland. Lithos 4, 163-84. Comparison is made between...suite of traehytic and rhyolitic dykes. In each complex a zimilar suite of trachytie and comendit~c magmas...atmosphere and wall-rocks. In the Kfingn~tt Fjeld complex where cooling was dowest, alkali loss is inferred...mildly peralurninous in consequence. In the dyke complex cooi,~ng was rapid and alkali loss less se.vere; |
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| Narssarssuk, Greenland. Photo by R. Bode. TITLE PAGE: The most common mineral in Greenland: ice —making...up the typical Arctic icebergs, ubiquitous in Greenland waters; photo by B. L. Nielsen. This special...GEOLOGICAL MAP OF GREENLAND NUUK (GODTHAB) PAAMIUT (FREDERIKSHAB) ARSUK NARSARSUAQ NARSAQ QAQORTOQ (JULIANEHAB)...Paleozoic and Mesozoic North Greenland platform and fold belt East Greenland Caledonian fold belt P rote...Archaean i 500 km i i i i PREFACE Throughout Greenland there are many interesting mineral localities |
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| syenite pluton, the Klokken intrusion, in the pre-Cambrian Gardar province in South Greenland. The photomicrographs...Fig. 2 shows feldspar bulk compositions for the Klokken syenite. Each analysis represents a separate microperthitic...occurred in the Klokken example or very probably in the majority of epizonal intrusives. The Klokken feldspars...crypto- and microperthitic alkali feldspars from the Klokken syenite. Each dot represents the bulk composition...crystal morphology, while in the latter grains have complex shapes, and crystal boundaries are commonly diffuse |
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| and geochemistry of the Abu Dom alkaline ring-complex, Bayuda Desert, Sudan D. A. O’Halloran Department...Liverpool University, L69 3BX. U.K. The Abu Dom complex is one of a cluster of Younger Granite ringcomplexes...with the exception of the well-known Sabaloka Complex (Almond 1977; Harris et al. 1983) few detailed...petrology and geochemistry of one example, the Abu Dom complex, are discussed. 2. General geology The Younger...emplaced into the Grey Gneiss Group of the Basement Complex of northern Sudan (Vail 1979). WAr dating of 0 |
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| (3) “Pinhal type” equigranular to inequigranular biotite granites (Wernick and Penalva, 1980), directly...high-K calc-alkaline granites (biotite granites and hornblende–biotite–quartz monzonites, respectively);...alkali feldspar, plagioclase, diopside, hornblende, biotite, opaque minerals and quartz (from LSO); H) dioritic...dioritic microgranular enclave with plagioclase, biotite, opaque minerals and quartz (from LSO); I) preserved...pyroxene, apatite and titanite as cumulus and biotite and Afs as intercumulus phases. The difference |
 | Kolb, Jochen, Keiding, Jakob K., Steenfelt, Agnete, Secher, Karsten, Keulen, Nynke, Rosa, Diogo, Stensgaard, Bo M. (2016) Metallogeny of Greenland. Ore Geology Reviews, 78. 493-555 doi:10.1016/j.oregeorev.2016.03.006 | Journal (article/letter/editorial) |
| Metallogeny of Greenland Jochen Kolb, Jakob K. Keiding, Agnete Steenfelt, Karsten Secher...Rosa, Diogo, Stensgaard, Bo M., Metallogeny of Greenland, Ore Geology Reviews (2016), doi: 10.1016/j.oregeorev...pertain. ACCEPTED MANUSCRIPT Metallogeny of Greenland JOCHEN KOLB1, JAKOB K. KEIDING1,2, AGNETE STEENFELT1...Economic Geology, Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen K, Denmark...TE D MA Corresponding author: jkol@geus.dk Greenland is the largest island on Earth, with 80% of its |
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| Mid-Proterozoic alkaline magmatism in southern Greenland: the Gardar province 449 LARSEN, L. M. & SORENSEN...T. F. D. Tertiary alkaline magmatism in East Greenland: a review 489 DOWNES, H. Tertiary and Quaternary...alkaline provinces, such as East Africa, southern Greenland and the Kola Peninsula, are included together...(1983) for the Tupertalik carbonatite in western Greenland. At the present time, alkaline magmas are erupted...The Proterozoic Gardar province in SouthWest Greenland is probably the best studied of these and is reviewed |
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| whom I have explored and experienced the Bushveld Complex, and the many associates elsewhere who have shown...River in the Upper Critical Zone of the Bushveld Complex. Chromitite layers in anorthosite frequently bifurcate...conversion of primary to derivative magmas. Thus a complex series of "integration stages" coupled with "differentiation...that are over-ruled by the likelihood of more complex processes operating at crystal boundaries and between...peridotite and troctolite layers in the Cuillin Igneous Complex, Skye (Claydon and Bell, 1992). In the Kap Edvard |
