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Dawros Peridotite

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Journal Article
Published: 14 October 2011
Geological Magazine (2012) 149 (4): 590–605.
... the Dawros Peridotite, NW Connemara, Ireland to determine the composition of their parental magmas. Calculation of Cr no. (Cr/(Cr + Al)) (0.50–0.77) values and TiO 2 (0.18–0.36 wt%) contents of the Cr-spinel seams, coupled with an estimation of the Al 2 O 3 and TiO 2 contents (~11.86 wt% and ~0.39 wt...
Journal Article
Published: 01 September 1983
Journal of the Geological Society (1983) 140 (5): 843–844.
... to ‘discrete layers of chromitite’ and on their geological map of the Dawros peridotite the authors show the chrome-spine1 bands as traversing the intrusion in much the same manner as indicated previously (Rothstein 1957). In the western parts of these outcrops I found examples which I considered...
Journal Article
Published: 01 February 1983
Journal of the Geological Society (1983) 140 (1): 63–73.
...M. C. Bennett; F. G. F. Gibb Abstract The syn-D2 Dawros peridotite comprises a sequence of layered harzburgites (associated with massive orthopyroxenites) which pass upwards via a transition marked by the first appearance of chromitite layers into layered lherzolites. Microprobe analyses reveal...
Journal Article
Published: 01 January 1964
Geological Magazine (1964) 101 (1): 63–75.
...Bernard Elgey Leake Abstract Similarity of the Carlsbad-albite twin extinction angles indicates that the composition of the basic plagioclase occurring in a gabbroic layer in the Dawros peridotite is similar to that in the nearby Currywongaun-Doughruagh intrusion, in the ultrabasic Cashel-Lough...
Journal Article
Published: 01 November 1958
Geological Magazine (1958) 95 (6): 456–462.
...Andrew T. V. Rothstein Abstract Eight pyroxenes from the ultramafic peridotite of the Dawros promontory on the western coast of Ireland have been analyzed. The chemical data are given here, together with a rock analysis. Three are primary pyroxenes from the layered peridotite resulting from...
Image
Field photographs and photomicrographs of relevant features of the <b>Dawros</b> P...
Published: 01 November 2005
Fig. 3. Field photographs and photomicrographs of relevant features of the Dawros Peridotite. (A) Photomicrograph of chrome-spinel layer contact (highlighted) with serpentinite, NW part of the intrusion. (B) Layer-parallel fabric defined by constituent minerals of the lherzolites, centre
Journal Article
Published: 01 September 1976
Journal of the Geological Society (1976) 132 (5): 485–508.
... Fe-enrichment towards the axial planes of the major structures (inverted synclines), with the overall trend in Currywongaun continued by a similar trend in Doughruagh. Early crystallizing cumulates of the basic magma are thought to be represented in the nearby Dawros peridotite that was tectonically...
Image
Equal-area stereographic projections illustrating poles to planes of phase ...
Published: 01 November 2005
Fig. 4. Equal-area stereographic projections illustrating poles to planes of phase layering and magmatic fabrics, and the close relationship between both, from (A) the Dawros Peridotite, (B) Currywongaunbeg, and (C) Currywongaun Summit.
Journal Article
Published: 01 November 2005
Scottish Journal of Geology (2005) 41 (2): 119–128.
...Fig. 3. Field photographs and photomicrographs of relevant features of the Dawros Peridotite. (A) Photomicrograph of chrome-spinel layer contact (highlighted) with serpentinite, NW part of the intrusion. (B) Layer-parallel fabric defined by constituent minerals of the lherzolites, centre...
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Journal Article
Published: 01 November 1984
Journal of the Geological Society (1984) 141 (6): 1081–1082.
... 118 491 500 Rothstein A. T. V. Discussion on younging directions in the Dawros peridotite, Connemara J. geol. Soc. London 1983 140 843 4 Wells P. R. A. Pyroxene thermometry in simple and complex systems Contrib. Mineral. Petrol 1977 62 129 39 J . geol. Soc...
Journal Article
Published: 01 August 1990
Journal of the Geological Society (1990) 147 (4): 599–602.
... in the Dawros peridotite, Connemara Journal of the Geological Society, London 1983 140 63 73 Bremner D. L. Leake B. E. The geology of the Roundstone ultrabasic complex, Connemara Proceedings of the Royal Irish Academy 1980 80B 395 433 Elias E. M. Macintyre R. M. Leake B...
Journal Article
Published: 01 February 1998
Journal of the Geological Society (1998) 155 (1): 25–37.
.... Middleton R. Kanaris-Sotiriou R. Petrogenetic significance of a peridotite xenolith from the Currywongaun intrusion Journal of Earth Sciences, Dublin Royal Society 1980 2 153 159 Bennett M.C. Gibb F.G.F. Younging directions in the Dawros peridotite, Connemara Journal...
Journal Article
Published: 01 August 1989
Journal of the Geological Society (1989) 146 (4): 575–596.
..., Ireland Geological Magazine 1968 105 456 470 Bennett M. C. Gibb F. G. F. Younging directions in the Dawros peridotite, Connemara Journal of the Geological Society, London 1983 140 63 73 Birps Ecors Deep seismic reflection profiling between England, France...
Journal Article
Published: 01 March 1986
Journal of the Geological Society (1986) 143 (2): 221–236.
.... Although the meta-igneous suite includes rare peridotites (olivine Fo 75-87 ,) and anorthosites, it is mostly hornblende-augite-labradorite or bytownite-metagabbro and later quartz diorite or trondhjemite gneiss, which has injected the earlier more basic rocks. Variably preserved igneous layering...
Journal Article
Published: 01 January 2002
Journal of the Geological Society (2002) 159 (1): 83–94.
... bodies which range in composition from peridotite cumulates through gabbros and norites to syenites, although the full compositional spectrum is not present in each intrusion. The petrology of the intrusions has been summarized by Wadsworth (1982) and Kneller (1987) , and diverse aspects...
FIGURES | View All (6)
Published: 01 January 2013
DOI: 10.1180/DHZ.19
EISBN: 9780903056434
... series in which M 1 is occupied by (Mg,Fe) and M 2 by Ca. The Mg-Fe substitution is accompanied by only minor changes in the Si–O chain configuration. Pyroxene structures can vary in several ways: Table 17. Pyroxene analyses. 1 Enstatite, peridotite, Dawros, Republic of Ireland (Rothstein...