The geology of the Shiant Isles

Abstract

I. INTRODUCTION -- PHYSICAL FEATURES 1 • • II. PREVIOUS LITERATURE 5 • • III. PRESENT RESEARCH 9 • • IV. SUMMARY OF GEOLOGICAL STRUCTURE 10 • • V. JURASSIC STRATA 14 • (1) Garbh Eilean 14 • (2) Eilean an Tighe 17 • (3) Eilean Mhuire 18 • (4) Conclusions 20 • • VI. IGNEOUS GEOLOGY 22 • (1) Upper Sill of Garbh Eilean and Eilean an Tighe 22 • (d) Field Characters 22 • (b) Petrography 28 • (c) Analyses, Norms, Modes, etc 42 • (d) Differentiation of Sill 48 • (2) Lower Sill of Garbh Eilean 65 • (3) Upper Sill of Eilean Mhuire 67 • (4) Lower Sill of Eilean Mhuire 68 • (a) Field Characters 68 • (b) Petrography 71 • (c) Analyses, Norms, Modes, etc 83 • (d) Differentiation of Sill 87 • (5) Galtachean 91 • (a) Field Characters 91 • (b) Petrography 92 • (o) Differentiation 94 • (6) Age and Affinities of Shiant Sills 95 • • VII. GLACIATION 98 • • VIII, QUATERNARY AND RECENT DEPOSITS 100 • • IX. PLACE NAMES 100 • • X. ACKNOWLEDGMENTS 101 • • XI. PLATES AND MAP.