Skip to main content
Article thumbnail
Location of Repository

Geochemical Studies on the Scourian Complex, N. W. Scotland

By Hugh R. Rollinson


The gabbro-tonalite-trondhjemite-granodiorite-granite suite of the Scourian complex of northwest Scotland was studied at Scourie, Gruinard Bay and Torridon and represents highly deformed and metamorphosed plutonic igneous rocks, whose formation ca. 2900 Ma. ago represents the generation of new continental crust.\ud Amphibolites, found predominantly in amphibolite facies gneisses at Gruinard Bay may be metavolcanic and are chemically similar to present-day island arc tholeiites; they are complementary to the layered cumulitic gabbro-anorthosite complexes in granulite\ud facies gneisses and together they represent the remnants of an early basic volcanic-plutonic suite. Tonalite was generated by the partial melting of amphibolite, similar in chemistry to that found at Gruinard Bay. Trondhjemite, granodiorite and granite evolved from tonalite by the fractional crystallisation of plagioclase and hornblende at depths of less than 60 km. Granulite facies metamorphism at Scourie depleted originally wet tonalitic and trondhjemitic magmas in LIL elements but not potassium. Relatively dry granitic magmas were not depleted during granulite facies metamorphism. There is a change in the principal magmatype from Scourie in the north (tonalite) through Gruinard Bay (trondhjemite) to Torridon in the south (granodiorite) reflecting a southerly increase in K20 across the complex. Granulite facies grieisses at Scourie show a continuum of rock types between ultramafic and granitic, but amphibolite facies gneisses show a distinct bimodality.\ud Igneous temperatures of 1000°C to 1150°C were obtained from feldspar and ilmenite-magnetite thermometry. The peak of the granulite facies metamorphism was at 820°C and 10 kb. and was determined using plagioclase-scapolite and garnet-pyroxene equilibria. Many mineral pairs equilibrated at lower temperatures and reflect the cooling history of the complex. Water was introduced into granite sheets during cooling at about 600°C. The Archaean crust at Scourie was originally 60 km thick and the thermal history of the area suggests that the crust was magmatically thickened.\ud The plutonic igneous and metamorphic history of these rocks invite comparison with modern Cordilleran batholiths and suggest that the Scourian complex formed in an analogous tectonic setting

Publisher: University of Leicester
Year: 1978
OAI identifier:

Suggested articles


  1. (1972) A geochemical comparison of major Archaean gneiss units from northwest
  2. (1978). (This thesis, chapter 4)
  3. (1978). 1) Achieving and demonstrating equilibrium between coexisting feldspars in the experiments (qv.
  4. (1978). 2) The identification of the phases pro4uced in the experiment, which is dependent upon determinative curves for(2011) spacing, which can differ by as much as 0.06 N (Parsons,
  5. (1974). A comparison of some mixing models for crystalline silicate solid solutions.
  6. (1977). A geochemical study of island are and back are tholeiites from the Scotia sea.
  7. (1961). A geochronological study of the metamorphic complexes of the Scottish highlands.
  8. (1974). A horizontal tectonic regime in the Archaean of Greenland and its implications for early crustal thickening.
  9. (1972). A hydrothermal investigation of the system FeO,
  10. (1977). A method of trading the temperature and oxygen fugacity histories of complex magnetite-ilmenite grains.
  11. (1976). A model for the formation and crystallisation of corrundum-normative calc-alkaline magmas through amphibole fractionation.
  12. (1978). A model for the formation and crystallisation of corrundum-normative calc-alkaline magmas through amphibole fractionation. A reply.
  13. (1974). A possible mantle origin for andesitic magmas: discussion of a, paper by Nicholls and Ringwood. Earth Planet.
  14. (1973). A pyroxene geotherm.
  15. (1968). A review of K-Rb fractionation trendy by covariance analysis.
  16. (1978). A review of the experimental studies of crystal/ liquid trace element partitioning.
  17. (1970). Additional data for the two-feldspar thermometer.
  18. (1977). Ages, isotopes and the evolution of Precambrian continental crust.
  19. (1970). Alkali feldspars with water at 5 kb pressure.
  20. (1978). Alkali feldspars. Which solves ?
  21. (1963). Alkali ion exchange between vapour and feldspar phases.
  22. (1976). Alumina content of enstatite as a geobarometer for plagioclase and spinel lherzolites.
  23. (1974). Amphiboles and pyroxenes; characterisation of other than quadrilateral components and estimates of ferric iron from microprobe data.
  24. (1974). An experimental determination of the alkali feldspar solves.
  25. (1974). Analysis of experimental data on alkali feldspar unit cell parameters and solvi.
  26. (1969). Analysis of the two phase region halite-sylvite in the system NaC1-KC1.
  27. (1970). Ancient and modern volcanic rocks: a trace element model.
  28. (1976). Archaean high grade complexes and modern continental margins.
  29. (1972). Archaean mafic and ultramafic rock association in the E. Goldfields region,
  30. (1976). Archaean thermal regimes, crustal and upper Mantle temperatures and a progressive evolutionary model for the earth.
  31. (1975). Basalt geochemistry used to investigate past tectonic environments on Cyprus.
  32. (1972). Basalts and sea floor spreading behind the Mariana island are.
  33. (1976). Basic intrusions in the Ordovician of North Wales - geochemical data and tectonic setting.
  34. (1969). Chemical investigations of deep seated rocks in the Australian shield.
  35. (1976). Chemistry of ilmenite orystallised Within the anhydrous melting range of a tholeiitia andesite at pressures between 5 and 26 kb.
  36. (1977). Chemistry, thermal gradients and evolution of the lower continental crust.
  37. (1962). Comments on the two-feldspar geothermometer.
  38. (1976). Comments on the use of Ti, Zr,
  39. (1973). Comparative major element geochemistry of the Lewisian rocks of the mainland of
  40. (1976). Composition and structural state of alkali feldspars from high grade metamorphic rocks, central Australia.
  41. (1974). Controls of ordering and subsolidus phase relations in the alkali feldspars.
  42. (1977). Crustal anatexis, an experimental review.
  43. (1975). Crystallisation of alkali feldspar and quartz in the haplogranite system HaA]. Si3O8-IL1Si3O8 H2O at 4 kb.
  44. (1973). Crystallisation trend of titanomagnetites In an alkali basalt frog Saint Clement (Massif Central,
  45. (1973). Determination of liquid composition in experimental samples: discrepancies between microprobe analyses and other methods.
  46. (1976). Diop side- enstati te equilibria at 850-1400°c, 5-35 kbar.
  47. (1976). Distinct cooling histories of troctolites from the Freetown layered gabbro.
  48. (1974). Distribution of some elements between coexisting ferromaiesian minerals in Moldanubian granulite tacies rocks,
  49. (1969). Distribution of the granulites within the Bohemian v 1iassif and their petrological features.
  50. (1978). Early Archaean rocke and geochemical evolution of the earth's crust.
  51. (1976). Eastatite-diopside solves and 6eothermometry.
  52. (1972). Effect of water on the composition of magmas formed at high pressures.
  53. (1974). Electron microprobe measurement of pyroxenes coexisting with H2O undersaturated liquid in the join CaM612O6-Mg2Si2O6-H20 at 30 kilobars, with applications to geothermometry.
  54. (1977). Elementary thermodynamics for geologists.
  55. (1968). Equilibrium study of anorthite under high pressure and temperature.
  56. (1977). Evidence of Precambrian continent-continent collision is 'Western Norway.
  57. (1978). Experimental and thermodynamic evidence for the operation of high pressures in Archaean metamorphism.
  58. (1965). Experimental crystallisation of anhydrous granite at high pressures and temperatures.
  59. (1978). Experimental determination of the mixing properties of solid solutions with particular reference to garnet and clinopyroxene solutions.
  60. (1974). Experimental determination of the temperature and pressure dependence of the Fe-Mg partition, coefficient for coexisting garnet and clinopyroxene.
  61. (1967). Experimental investigation of the gabbro to eclogite transformation and its petrological implications.
  62. (1973). Experimental studies concerning the genesis of the Nigerian younger granites.
  63. (1973). Experimental studies of igneous rook series Central Sierra Nevada batholith, California: Part II.
  64. (1977). Explosion seismology and the crustmantle boundary.
  65. (1975). f practical two-feldspar geothermometer. AX--
  66. (1977). Feldspar and oxide thermometry of granulites in the adirondack highlands.
  67. (1974). Feldspar Minerals II. Chemical and textural properties.
  68. (1978). Feldspars and fluids in cooling plutons.
  69. (1976). fro-pyroxene geothermometers a model With an approxlaste solution.
  70. from an intra-oceanio marginal basin in the East Scotia Sea: a trace " 343 fleeent study.
  71. (1974). Garnet clinopyroxenite inclusions from diatremes in the gloucester area,
  72. (1977). Garnet in silicic liquids and its possible use as P-T indicator.
  73. (1973). Garnet orthopyroxene and orthopyroxene clinopyroxene relationships in simple and complex systems.
  74. (1974). General geology, age and chemistry of the Raftsund Mangerite intrusion, Lofoten Vesteraalen.
  75. (1976). Generation of trondhjemitic-tonalitio liquids and Archaean bimodal trondhjemite-basalt suites.
  76. (1976). Geochemical magma type discrimination: application to altered and metamorphosed basaltic igneous rocks.
  77. (1975). Geochemistry and origin of the early Precambrian crust of northeastern
  78. (1976). Geochemistry of Archaean high-grade gneisses, with implications as to the origin and evolution of the Precambrian
  79. (1978). Geochemistry of basaltic and gabbroic rocks from the W. Mariana basin and Marianas trench.
  80. (1973). Geochemistry of granulite facies rocks and problems of their origin.
  81. (1978). Geochemistry of the gabbro-diorite-tonalite-trondhjemite suite of southwest Finland and its implications for the origin of tonalitic and trondhjemitic magmas.
  82. (1974). Geochemistry of the rare earth elements in spilites from the oceanic and continental crust.
  83. (1970). Geochemistry of Vitu Levu, Fiji and its evolution as an island arc.
  84. (1978). Geochronology and isotope geochemistry of Precambrian rocks from
  85. (1977). Geothermometry and oxygen barometry using coexisting iron-titanium oxides: a reappraisal.
  86. (1975). Granulite facies metamorphism in the coast range crystalline belt.
  87. (1978). High pressure - temperature point on an Archaean geotheim, implied magna genesis by crustal anatexis and consequences for garnet pyroxene thermometry and
  88. (1974). I eons petrology.
  89. (1978). Ilmenite-magnetite geothermometry and oxygen barometry in granulite and amphibolite facies gneisses from Doubtful Sound, Fiordland, New Zealand. Lithos
  90. (1970). Ionic radii for use in lsoohsmistry.
  91. (1967). Iron titanium oxides and oxygen fugacity in volcanic rocks.
  92. (1972). Iron titanium oxides in the
  93. (1971). Iron-titanium oxide phenocrysts in composite zoned ash flow sheets from South Nevada.
  94. (1975). Isotopic evidence for the age and origin of the 'grey gneiss' complex of the southern Outer Hebrides,
  95. (1977). K, Rb and Sr abundances and Sr isotopic composition of Tanzawa granitic and associated gabbroic rocks, Japan: Low potash island are plutonic complex.
  96. (1969). K, Rb, Cs contents and K/Rb ratios of fresh and altered submarine basalts.
  97. (1970). K, Rb, Cs, and Sr relationships in submarine basalts from the Peuto Rico trench.
  98. (1976). K/Rb ratios and metasomatism in . metabasites from a Precambrian amphibolite-granulite transition zone.
  99. (1975). Lattice parameters. composition, and £1/Si order is alkali feldspars.
  100. (1977). Lead isotope measurements from the oldest recognised Lewisian gneisses of north-west Scotland.
  101. (1978). Low solubility of alumina in enstatite and uncertainties in estimated palaeogeotherms.
  102. (1971). Magic IV a computer program for quantitative electron iicroprobe analysis.
  103. (1977). Magma genesis in peridotite upper mantle in the light of experimental data on the partitioning of trace elements between garnet peridotite minerals and partial melt.
  104. (1975). Magma type and tectonic setting discrimination using immobile elements.
  105. (1972). Major and trace element abundances in volcanic rocks of erogenic areas.
  106. (1969). Manganoan ilmenite from a Sierran adamellite.
  107. (1976). Marginal 'Rocas Verdes' complex from S. Chile: A model for Archaean greenstone belt fonaation.
  108. (1974). Melting of tonalite and crystallisation of andesite liquid with excess water to 30 kilobars.
  109. (1974). Melting product of olivine tholeiite basalt in snbdnotion tones.
  110. (1975). Melting reactions in the system NaAlSi3O8-KAlSi3O8-SiO2 to 35 kilobars, dry and with excess water.
  111. (1958). Metamorphic reactions and metamorphic fancies.
  112. (1976). Mixing properties in tsermakitie clinopyroxenes.
  113. (1969). Mixing properties of sanidine crystalline solutions, III. Calculations based on two phase data.
  114. (1969). Mixing properties of sanidine crystalline solutions: IV. Phase diagrams from equations of state.
  115. (1972). Oceanic affinities of some alpine mafic rocks based on their Ti-Zr-Y contents.
  116. (1974). On the significance of komatiite.
  117. (1971). Ophiolite origin investigated by discriminant analysis using Ti, Zr
  118. (1975). Origin and ancient history of gneisses older than 2800 m. y. in the Lewisian complex. Nature 258,589-591"
  119. (1969). Origin of amphibolites in the Beartooth Sonntains, Wyoming and Montanas new data and interpretation.
  120. (1973). Origin of andesite and granite magna in the north Sierra Nevada California.
  121. (1968). Origin of garnet phenocrysta in calc alkaline rocks.
  122. (1958). Origin of granite in the light of experimental studies in the system
  123. (1975). origin of Ross Island basaaitoids and limitations upon the heterogeneity of mantle souroes for alkali basalts and nephelinitee.
  124. (1971). Original nature of the Archaean rocks of northwest Scotland.
  125. (1972). Oxidation during magmatic differentiation, Finnmarka complex, Oslo area, Norway: Part 1. The opaque oxides.
  126. (1968). Oxidation of the La Blache Lake titaniferous magnetite deposit,
  127. (1975). palaeogeotherms and the diopsideenstatite solvus.
  128. (1976). Partial fusion of basalts and andesites under vapour excess and vapour deficient conditions at 10 kb. total pressure. In, Progress in experimental petrology.
  129. (1976). Partitioning of Fe2+ and Mg between ilmenite and some ferromagnesian silicates.
  130. (1969). partitioning of sodium between coexisting E-feldepar and plag1oclase from some metamorphic rocks.
  131. (1975). Partitioning of Sr,
  132. (1976). perimental determination of the coherent solvus for eanidine-high albite.
  133. (1978). petrogenetic studies of metabasalte using immobile trace element ratios.
  134. (1969). phase relations in the system NaL1Si308- Kd1Si308- CaAl2Si2O8- Si02 at 1 kilobar water vapour pressure.
  135. (1977). Plagioclase - alkali feldspar 8eothermometry revisited.
  136. (1976). Plagioclase-garnet-112Si05-quartz; a potential Seobarometer-geothermometer.
  137. (1972). Plagioolase cation exchange equilibria with aqueous chloride solution. Results at 700°C and 200 bars in the presence of quartz.
  138. (1973). Plutonic rocks. Classification and nomenclature recommended by JUGS subcommission on the systematics of igneous rocks.
  139. (1934). Polymorphic phenomena and crystal structure.
  140. (1976). Problems of electron microprobe analysis of quenched liquids.
  141. (1962). Progressive metamorphism of amphibolite, northwest Adirondack mountains,
  142. (1978). Progressive simple shear deformation on the Laxford shear zone,
  143. (1977). Pstrogeaesis of basalts from the PA14OUS area: Mid Atlantic ridge. Earth planst.
  144. (1975). Pyroxene geothermometry of some granulite facies rocke.
  145. (1975). pyroxene thermometry in simple and complex grstems.
  146. (1972). Quartz diorites derived by the partial melting of eclogite or amphibolite at mantle depths.
  147. (1965). Rare earth distributions in some rocks and associated minerals of the batholith of Southern California.
  148. (1972). Rare earth element distribution and K/Rb ratios in granulites mangerites and anorthosites,
  149. (1974). Rare earth element distributions in Archaean gneisses and anorthosites,
  150. (1976). Rare earth partitioning between hornblende and dacitic liquid and implications for the genesis of trondhjemitic - tonalitic magmas.
  151. (1970). Rb, Sr, Y, Zr, and Bb in some ocean floor basaltic rocks.
  152. (1969). Remnants of an early metasedimentary assemblage in the Lewisian complex of the outer Hebrides.
  153. (1978). REr distributions in a high grade gneiss complex in Scotland. Implications for the genesis of ancient sialic crust.
  154. (1978). rlodelling of major elements in mantle melt systems using trace element approaches.
  155. (1978). Role of trace element partition coefficients in models of andesite genesis.
  156. (1969). Scapolite stoichiostetry.
  157. (1977). Scapolite-plagioclase stability relations at high pressures and temperatures in the system
  158. (1976). Scapolites, granulites and volatiles in the lower crust.
  159. (1974). Sea floor basalt alterations some chemical and Sr isotope effects.
  160. (1974). Setting of the Coast Plutonic Complex, British Columbia. Pacific Geol.
  161. (1978). Shield formation in early Precambrian time; the Lewisian complex. In
  162. (1967). Si 4+ content of natural phengites.
  163. (1970). Significance of calc-silicate rocks and metaarkose in the Lewisian complex, southeast of Scourie.
  164. (1977). Simultaneous crystallisation of feldspar intergrovthe from the melt.
  165. (1974). Solubility of alumina in orthopyroxene coexisting with garnet.
  166. (1969). Spilites from the Carlsberg ridge,
  167. (1974). Spilitic degradation of a tholeiitic basalt.
  168. (1971). Stability of andalusite and the aluminium silicate phase diagram.
  169. (1973). Stability of the assemblage muscovite-calcite-quartz.
  170. (1962). Stability relations of the ferruginous biotite Annite.
  171. (1960). Structural studies in the Precambrian of W. Greenland
  172. (1956). Studies in gneiss and granite.
  173. (1976). Subeolidus equilibria between pyroxenee in the CaO-MgO-SiO2 system at high pressures and temperatures.
  174. (1977). Subeommision on geochronology: convention on the use ©f decay constants in geo- and cosmochronology.
  175. (1969). Submarine basalts; some K, Rb, Sr, Ba, rare earth, H2O and CO2 data bearing en their alteration and modification by plagioclase and possible source materials.
  176. (1975). Subsolidus phase relations in the alkali feldspars with emphasis on coherent phases: and Microstructure, Kinetics and mechanisms of alkali feldspar
  177. (1973). Tectonic setting of basic volcanic rocks determined using trace element analyses.
  178. (1976). The 1.7- to 1.8- b. y. -old trondhjemites of southwestern Colorado and northern New Mexico: Geochemistry and depths of genesis.
  179. (1973). The 800chemistry of the Soourian gneisses of the Aesynt
  180. (1977). The activity of components in clinopyroxene and garnet solid solutions and their applications to rocks.
  181. (1966). The alkali feldspar solvue in the . 1359-1373. system As20-K20-A1203-Si02-1120.
  182. (1974). The alkali feldspar solvus at 1 kilobar water vapour pressure.
  183. (1978). The anatomy of a batholith.
  184. (1975). The application of thermodynamics to some subsolidus equilibria involving solid solutions.
  185. (1978). The application of trace elements to the petrogenesis of igneous rocks of granitic composition. Earth Planet. Sci"
  186. (1977). The Archaean evolution of the Lewisian complex of Grninard Bay.
  187. (1974). The batholith belt of southern California and western Mexico. Pacific Geol.
  188. (1964). The chemical distinction between ortho and pare s®phibolites.
  189. (1975). The chemistry and origin of the Lewisian gneisses of the Scottish mainland: the Scourie and Inver assemblages and suborustal accretion.
  190. (1973). The chemistry of gabbro amphibolite transitions in
  191. (1974). The chemistry of gabbro-amphibolite transitions in S. Aorway. Trace elements.
  192. (1972). The chemistry of some granitic veins from the
  193. (1977). The distribution Of NM1Si308 between coexisting miarocline and plagioclase and its effect on 6+sothermometric calculations.
  194. (1977). The early history-of the typeLaxfordian complex, northwest Sutherland,
  195. (1976). The effect of the reduced activity of anorthite on the reaction grossular + quartz = wollastonite: a model for plagioclase in the earth's lover crust and upper mantle.
  196. (1962). The feldspar geologic thermometer.
  197. (1951). The feldspar geologic thermometers. Heues Jahrb.
  198. (1973). The Fiskenaesset complex, West Greenland Part I. A preliminary study of the stratigraphy petrology and whole rock chemistry from Qeqertarssuatsiaq.
  199. (1977). The Fiskenaesset complex, west Greenland, Part III.
  200. (1955). The formation of feldspar perthites in highly deformed metamorphic gneiss.
  201. (1977). The geochemistry of central Australian granulites 331 in relation to the chemical and isotopic effects of granulite facies metamorphism.
  202. (1964). The granite system at pressures of 4 to 10 kilobare.
  203. (1973). The granulite facies, partial melting and the Archaean crust.
  204. (1963). The High Albite - Sanidine solvus was studied by Orville
  205. (1977). The influence of erosion upon the mineral facies of rocks from different metamorphic environments.
  206. (1972). The influence of pressure on the alkali feldspar solvus trotz peraluminous and persilicic materials.
  207. (1975). The influence of pressure, temperature and bulk composition on the appearance of garnet in orthogneiss - an example from South Harris. Earth Planet.
  208. (1967). The iron titanium oxides of sialic volcanic rocks and their associated ferromagnesian silicates.
  209. (1966). The join Mg2Si2O6 - CaMgSi206at 30 kilobars pressure and its application to pyroxenes from kimberlites.
  210. (1964). The natural system enstatite PYrope.
  211. (1970). The origin of the Lewisian gteisses of northwest Scotland, with particular reference to the Drumbeg area, Sutherland. Barth Planet.
  212. (1969). The petrochemistry of the Scourie granulites.
  213. (1968). The petrology of the metamorphosed syenite inGlen Desaarry,
  214. (1951). The pre-Torridonian metamorphic history of the Loch Torridon and Scourie areas in the northwest highlands.
  215. (1975). The pseudobinary join Muscoviteparagonite.
  216. (1974). The recalculation of pyroxene end-member parameters and the estimation of ferrous-ferric iron content from electron microprobe analyses.
  217. (1977). The relationship between major element chemistry and tectonic environment of basic and intermediate volcanic rocks.
  218. (1974). The role of H2O in silicate melts II Thermodynamic and phase relations in the system Na61Si308- H2O to 10 kilobare, 700°C to 1100°C.
  219. (1977). The separation of magmas from partially molten peridotite.
  220. (1976). The significance of incompatible elements in Mid Atlantic ridge basalts for 450 N, with particular reference to zr/Nb.
  221. (1969). The significance of lead isotope studies in ancient high grade metamorphic basement complexes as exemplified by the Lewisian rocks of northwest Scotland.
  222. (1976). The solubility of A1203 in orthopyroxenes in spinel and plagioclase peridotites and spinel pyroxenite.
  223. (1977). The stability of sphene: experimental redetermination and geologic implications.
  224. (1964). The system enstatite-pyrope.
  225. (1974). the system MgO-A1203-SiO2: solubility of A1203 in enstatite for spinel and garnet peridotite compositions.
  226. (1977). The systems two alkali feldspars -KC1 - NaCl - H2O at moderate to high temperature and low pressures.
  227. (1975). The T102-120-P205 diagrams a method of discriminating between oceanic and non oceanic basalts.
  228. (1978). The thermodynamics of pyrozene geotherma.
  229. (1971). The two feldspar geothermometer.
  230. (1978). The use of 'immobile' trace elements to distinguish the palaeotectonic affinities of metabasalts: Applications to the Palaeocene basalts of Mull
  231. (1952). Theoretical petrology.
  232. (1972). Thermal and mechanical history of breccias 14306,14063,14270 and 14321.
  233. (1977). Thermal history of excavation of Archaean gneieaes from the base of the continental crust.
  234. (1968). Thermodynamic properties of minerals and related substances at 298.15 (2590°C) and one atmosphere (1.013 bars) pressure and at higher temperatures.
  235. (1967). Thermodynamic properties of simple solutions.
  236. (1978). Thermodynamics of element partitioning (1) systematics of transition metals in crystalline and molten silicates and (2) defect chemistry and the Henry's Law problem.
  237. (1972). Ti, Zr, Cr in some British pillow lavas and their petrogenetic affinities.
  238. (1976). Trace element geochemistry of Archaean granitic rocks from the Barberton region,
  239. (1978). Trace element mobility during hydrothermal alteration of oceanic basalts.
  240. (1977). Two feldspar gsotheraometry, 1eobarometry in mesozonal granitic intrusions: three examples from the piedmont of Georgia.
  241. (1977). Two-feldspar geothermometry in 8raanlite facie: metamorphic rocks: sapphirine granulites from Brazil.
  242. (1976). Variations in crustal level and geothermal gradient during the evolution of the Lewisian coiplex of northwest Scotland.
  243. (1968). ý N .7A .ON 'O N .O .9O ") 0 '3 AJN "3 '$ J! .r Pº yN "a .TJNJA
  244. (1974). yttrium and the Lanthanides.
  245. (1974). Zr contents of glaucophane bearing metabasalts of W.

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.