ALBERT

Note: J. B. Dawson, D. A. Carswell, J. Hall, and K.H. Wedepohl: Introduction / Geological Society, London, Special Publications, 24:vii-viii, doi:10.1144/GSL.SP.1986.024.01.01 --- R. Meissner: Twenty years of deep seismic reflection profiling in Germany—a contribution to our knowledge of the nature of the lower Variscan crust / Geological Society, London, Special Publications, 24:1-10, doi:10.1144/GSL.SP.1986.024.01.02 --- D. H. Matthews: Seismic reflections from the lower crust around Britain / Geological Society, London, Special Publications, 24:11-21, doi:10.1144/GSL.SP.1986.024.01.03 --- S. B. Smithson: A physical model of the lower crust from North America based on seismic reflection data / Geological Society, London, Special Publications, 24:23-34, doi:10.1144/GSL.SP.1986.024.01.04 --- V. Haak and R. Hutton: Electrical resistivity in continental lower crust / Geological Society, London, Special Publications, 24:35-49, doi:10.1144/GSL.SP.1986.024.01.05 --- J. Hall: The physical properties of layered rocks in deep continental crust / Geological Society, London, Special Publications, 24:51-62, doi:10.1144/GSL.SP.1986.024.01.06 --- D. S. Chapman: Thermal gradients in the continental crust / Geological Society, London, Special Publications, 24:63-70, doi:10.1144/GSL.SP.1986.024.01.07 --- J. F. Dewey: Diversity in the lower continental crust / Geological Society, London, Special Publications, 24:71-78, doi:10.1144/GSL.SP.1986.024.01.08 --- N. J. Kusznir and R. G. Park: Continental lithosphere strength: the critical role of lower crustal deformation / Geological Society, London, Special Publications, 24:79-93, doi:10.1144/GSL.SP.1986.024.01.09 --- K. Weber: Metamorphism and crustal rheology—implications for the structural development of the continental crust during prograde metamorphism / Geological Society, London, Special Publications, 24:95-106, doi:10.1144/GSL.SP.1986.024.01.10 --- S. A. F. Murrell: The role of deformation, heat, and thermal processes in the formation of the lower continental crust / Geological Society, London, Special Publications, 24:107-117, doi:10.1144/GSL.SP.1986.024.01.11 --- K. Fuchs: Intraplate seismicity induced by stress concentration at crustal heterogeneities—the Hohenzollern Graben, a case history / Geological Society, London, Special Publications, 24:119-132, doi:10.1144/GSL.SP.1986.024.01.12 --- K. Lambeck: Crustal structure and evolution of the central Australian basins / Geological Society, London, Special Publications, 24:133-145, doi:10.1144/GSL.SP.1986.024.01.13 --- R. W. Kay and S. M. Kay: Petrology and geochemistry of the lower continental crust: an overview / Geological Society, London, Special Publications, 24:147-159, doi:10.1144/GSL.SP.1986.024.01.14 --- J. Touret: Fluid inclusions in rocks from the lower continental crust / Geological Society, London, Special Publications, 24:161-172, doi:10.1144/GSL.SP.1986.024.01.15 --- S. R. Taylor and S.M. McLennan: The chemical composition of the Archaean crust / Geological Society, London, Special Publications, 24:173-178, doi:10.1144/GSL.SP.1986.024.01.16 --- R. L. Rudnick and S. R. Taylor: Geochemical constraints on the origin of Archaean tonalitic-trondhjemitic rocks and implications for lower crustal composition / Geological Society, London, Special Publications, 24:179-191, doi:10.1144/GSL.SP.1986.024.01.17 --- D. A. Carswell and S.J. Cuthbert: Eclogite facies metamorphism in the lower continental crust / Geological Society, London, Special Publications, 24:193-209, doi:10.1144/GSL.SP.1986.024.01.18 --- S. Moorbath and P.N. Taylor: Geochronology and related isotope geochemistry of high-grade metamorphic rocks from the lower continental crust / Geological Society, London, Special Publications, 24:211-220, doi:10.1144/GSL.SP.1986.024.01.19 --- B. F. Windley and J. Tarney: The structural evolution of the lower crust of orogenic belts, present and past / Geological Society, London, Special Publications, 24:221-230, doi:10.1144/GSL.SP.1986.024.01.20 --- C. Pin and J. D. Sills: Petrogenesis of layered gabbros and ultramafic rocks from Val Sesia, the Ivrea Zone, NW Italy: trace element and isotope geochemistry / Geological Society, London, Special Publications, 24:231-249, doi:10.1144/GSL.SP.1986.024.01.21 --- S. Robertson: Evolution of the late Archaean lower continental crust in southern West Greenland / Geological Society, London, Special Publications, 24:251-260, doi:10.1144/GSL.SP.1986.024.01.22 --- L. Schiøtte, D. Bridgwater, K.D. Collerson, A.P. Nutman, and A.B. Ryan: Chemical and isotopic effects of late Archaean high-grade metamorphism and granite injection on early Archaean gneisses, Saglek-Hebron, northern Labrador / Geological Society, London, Special Publications, 24:261-273, doi:10.1144/GSL.SP.1986.024.01.23 --- D. M. Shaw, J. J. Cramer, M. D. Higgins, and M. G. Truscott: Composition of the Canadian Precambrian shield and the continental crust of the earth / Geological Society, London, Special Publications, 24:275-282, doi:10.1144/GSL.SP.1986.024.01.24 --- M. Raith and P. Raase: High grade metamorphism in the granulite belt of Finnish Lapland / Geological Society, London, Special Publications, 24:283-295, doi:10.1144/GSL.SP.1986.024.01.25 --- R. C. Newton and E.C. Hansen: The South India-Sri Lanka high-grade terrain as a possible deep-crust section / Geological Society, London, Special Publications, 24:297-307, doi:10.1144/GSL.SP.1986.024.01.26 --- H.-G. Stosch, G. W. Lugmair, and H.A. Seck: Geochemistry of granulite-facies lower crustal xenoliths: implications for the geological history of the lower continental crust below the Eifel, West Germany / Geological Society, London, Special Publications, 24:309-317, doi:10.1144/GSL.SP.1986.024.01.27 --- H. Downes and A. Leyreloup: Granulitic xenoliths from the French Massif Central—petrology, Sr and Nd isotope systematics and model age estimates / Geological Society, London, Special Publications, 24:319-330, doi:10.1144/GSL.SP.1986.024.01.28 --- J. R. Broadhurst: Mineral reactions in xenoliths from the Colorado Plateau; implications for lower crustal conditions and fluid composition / Geological Society, London, Special Publications, 24:331-349, doi:10.1144/GSL.SP.1986.024.01.29 --- P. W. C. van Calsteren, N. B. W. Harris, C. J. Hawkesworth, M. A. Menzies, and N. W. Rogers: Xenoliths from southern Africa: a perspective on the lower crust / Geological Society, London, Special Publications, 24:351-362, doi:10.1144/GSL.SP.1986.024.01.30 --- W. L. Griffin and S. Y. O’Reilly: The lower crust in eastern Australia: xenolith evidence / Geological Society, London, Special Publications, 24:363-374, doi:10.1144/GSL.SP.1986.024.01.31

Note: Contents: List of contributors. - Preface. - 1 An Overview of Rates of Chemical Weathering / S. M. Colman and D. P. Dethier. - PART I KINETICS AND MECHANISMS OF WEATHERING REACTIONS. - 2 The Relations between Crystal Structure and Silicate Weathering Rates / R. A. Eggleton. - 3 The Dissolution Rate of Forsteritic Olivine from Hawaiian Beach Sand / D. E. Grandstaff. - 4 Stoichiometry of Alkali Feldspar Dissolution at Room Temperature and Various pH Values / G. R. Holdren, Jr. and P. M. Speyer. - 5 Rate Limitation and Dissolution of Highly Soluble Minerals / J. B. Laronne. - PART II RATES OF MINERAL ALTERATION IN SOIL ENVIRONMENTS. - 6 The Etching of Hornblende Grains in the Matrix of Alpine Tills and Periglacial Deposits / R .D. Hall and R. E. Martin. - 7 Rates of Hornblende Etching in Soils on Glacial Deposits, Baffin Island, Canada / W. W. Locke. - 8 Rates of Mineral Weathering in the Wind River Mountains, Western Wyoming / W. C. Mahaney and D. L. Halvorson. - 9 Evolution of Iron Crusts in Tropical Landscapes / D.B. Nahon. - 10 Processes and Rates of Weathering in Cold and Polar Desert Environments / F. C. Ugolini. - PART III WEATHERING OF VOLCANIC ASHES AND DEPOSITS. - 11 Weathering of Holocene Airfall Tephras in the Southern Canadian Rockies / R. H. King. - 12 Controls on the Rates of Weathering and Clay Mineral Genesis in Airfall Tephras: A Review and New Zealand Case Study / D. J. Lowe. - 13 Rates of Weathering of 14C-Dated Late Quaternary Volcaniclastic Deposits in the Western United States / V. E. Neall and I. K. Paintin. - 14 Chemical Weathering of the May 18, 1980, Mount St. Helens Ash Fall and the Effect on the Iron Creek Watershed, Washington / A. F. White and L. V. Benson and A. Yee. - PART IV RATES OF FORMATION OF ROCK-WEATHERING FEATURES. - 15 Levels of Time Information in Weathering Measurements, with Examples from Weathering Rinds on Volcanic Clasts in the Western United States / S. M. Colman. - 16 Weathering Rates in Granitic Boulders Measured by P-Wave Speeds / R. Crook, Jr. and A. R. Gillespie. - 17 Growth of Weathering Rinds on Torlesse Sandstone, Southern Alps, New Zealand / I. E. Whitehouse and M. J. McSaveney and P. L. K. Knuepfer and T. J. H. Chinn. - PART V HYDROCHEMICAL STUDIES OF RATES OF WEATHERING. - 18 The Mathematical Basis for Determining Rates of Geochemical and Geomorphic Processes in Small Forested Watersheds by Mass Balance: Examples and Implications / M. A. Velbel. - 19 An Estimate of Plagioclase Weathering Rate in the Idaho Batholith Based upon Geochemical Transport Rates / J. L. Clayton. - 20 The Use of Catchment Studies for Assessing Chemical Weathering Rates in Two Contrasting Upland Areas in Northeast Scotland / J. Creasey and A. C. Edwards and J. M. Reid and D. A. MacLeod and M. S. Cresser. - 21 Weathering Rates and the Chemical Flux from Catchments in the Pacific Northwest, U.S.A. / D. P. Dethier. - 22 Rates of Weathering and Erosion Derived from Mass Balance in Small Drainage Basins / T. Paces. - 23 Processes and Rates of Saprolite Production and Erosion on a Foliated Granitic Rock of the Virginia Piedmont / M. J. Pavich. - Index.

Note: Continental Rift Basins --- H. G. Reading: African Rift tectonics and sedimentation, an introduction / Geological Society, London, Special Publications, 25:3-7, doi:10.1144/GSL.SP.1986.025.01.01 --- A. T. Grove: Geomorphology of the African Rift System / Geological Society, London, Special Publications, 25:9-16, doi:10.1144/GSL.SP.1986.025.01.02 --- African Rift Basin Development --- J. D. Fairhead: Geophysical controls on sedimentation within the African Rift Systems / Geological Society, London, Special Publications, 25:19-27, doi:10.1144/GSL.SP.1986.025.01.03 --- B. R. Rosendahl, D. J. Reynolds, P. M. Lorber, C. F. Burgess, J. McGill, D. Scott, J. J. Lambiase, and S. J. Derksen: Structural expressions of rifting: lessons from Lake Tanganyika, Africa / Geological Society, London, Special Publications, 25:29-43, doi:10.1144/GSL.SP.1986.025.01.04 --- B. H. Baker: Tectonics and volcanism of the southern Kenya Rift Valley and its influence on rift sedimentation / Geological Society, London, Special Publications, 25:45-57, doi:10.1144/GSL.SP.1986.025.01.05 --- L. A. J. Williams and G. R. Chapman: Relationships between major structures, salic volcanism and sedimentation in the Kenya Rift from the equator northwards to Lake Turkana / Geological Society, London, Special Publications, 25:59-74, doi:10.1144/GSL.SP.1986.025.01.06 --- C. J. Swain, N. J. Skinner, and M. A. Khan: Depth to metamorphic basement in the Koobi Fora region from seismic and gravity data / Geological Society, London, Special Publications, 25:75-84, doi:10.1144/GSL.SP.1986.025.01.07 --- R. T. Watkins: Volcano-tectonic control on sedimentation in the Koobi Fora sedimentary basin, Lake Turkana / Geological Society, London, Special Publications, 25:85-95, doi:10.1144/GSL.SP.1986.025.01.08 --- Siliciclastic, Chemical, Pedogenic and Organic Sediments in Contemporary Rift Environments --- I. Reid and L. E. Frostick: Slope processes, sediment derivation and landform evolution in a rift valley basin, northern Kenya / Geological Society, London, Special Publications, 25:99-111, doi:10.1144/GSL.SP.1986.025.01.09 --- L. E. Frostick and I. Reid: Evolution and sedimentary character of lake deltas fed by ephemeral rivers in the Turkana basin, northern Kenya / Geological Society, London, Special Publications, 25:113-125, doi:10.1144/GSL.SP.1986.025.01.10 --- A. S. Cohen, D. S. Ferguson, P. M. Gram, S. L. Hubler, and K. W. Sims: The distribution of coarse-grained sediments in modern Lake Turkana, Kenya: implications for clastic sedimentation models of rift lakes / Geological Society, London, Special Publications, 25:127-139, doi:10.1144/GSL.SP.1986.025.01.11 --- R. F. Yuretich: Controls on the composition of modern sediments, Lake Turkana, Kenya / Geological Society, London, Special Publications, 25:141-152, doi:10.1144/GSL.SP.1986.025.01.12 --- P. I. Abell and J. P. McClory: Sedimentary carbonates as isotopic marker horizons at Lake Turkana, Kenya / Geological Society, London, Special Publications, 25:153-158, doi:10.1144/GSL.SP.1986.025.01.13 --- R. W. Renaut, J. J. Tiercelin, and R. B. Owen: Mineral precipitation and diagenesis in the sediments of the Lake Bogoria basin, Kenya Rift Valley / Geological Society, London, Special Publications, 25:159-175, doi:10.1144/GSL.SP.1986.025.01.14 --- H. P. Eugster: Lake Magadi, Kenya: a model for rift valley hydrochemistry and sedimentation? / Geological Society, London, Special Publications, 25:177-189, doi:10.1144/GSL.SP.1986.025.01.15 --- R. Crossley: Sedimentation by termites in the Malawi Rift Valley / Geological Society, London, Special Publications, 25:191-199, doi:10.1144/GSL.SP.1986.025.01.16 --- J. Casanova: East African Rift stromatolites / Geological Society, London, Special Publications, 25:201-210, doi:10.1144/GSL.SP.1986.025.01.17 --- A. Hamilton and D. Taylor: Mire sediments in East Africa / Geological Society, London, Special Publications, 25:211-217, doi:10.1144/GSL.SP.1986.025.01.18 --- Sedimentary History of African Rift Basins --- J. J. Tiercelin: The Pliocene Hadar Formation, Afar depression of Ethiopia / Geological Society, London, Special Publications, 25:221-240, doi:10.1144/GSL.SP.1986.025.01.19 --- M. A. J. Williams, Getaneh Assefa, and D. A. Adamson: Depositional context of Plio-Pleistocene hominid-bearing formations in the Middle Awash valley, southern Afar Rift, Ethiopia / Geological Society, London, Special Publications, 25:241-251, doi:10.1144/GSL.SP.1986.025.01.20 --- R. Bonnefille, C. Robert, A. M. Lezine, G. Perinet, G. Delibrias, C. Elenga, J. P. Herbin, and J. J. Tiercelin: Palaeoenvironment of Lake Abijata, Ethiopia, during the past 2000 years / Geological Society, London, Special Publications, 25:253-265, doi:10.1144/GSL.SP.1986.025.01.21 --- P. G. Williamson and R. J. G. Savage: Early rift sedimentation in the Turkana basin, northern Kenya / Geological Society, London, Special Publications, 25:267-283, doi:10.1144/GSL.SP.1986.025.01.22 --- A. Hill, G. Curtis, and R. Drake: Sedimentary stratigraphy of the Tugen Hills, Baringo, Kenya / Geological Society, London, Special Publications, 25:285-295, doi:10.1144/GSL.SP.1986.025.01.23 --- C. K. Nyamweru: Quaternary environments of the Chalbi basin, Kenya: sedimentary and geomorphological evidence / Geological Society, London, Special Publications, 25:297-310, doi:10.1144/GSL.SP.1986.025.01.24 --- R. B. Owen and R. W. Renaut: Sedimentology, stratigraphy and palaeoenvironments of the Holocene Galana Boi Formation, NE Lake Turkana, Kenya / Geological Society, London, Special Publications, 25:311-322, doi:10.1144/GSL.SP.1986.025.01.25 --- A. Vincens, J. Casanova, and J. J. Tiercelin: Palaeolimnology of Lake Bogoria (Kenya) during the 4500 BP high lacustrine phase / Geological Society, London, Special Publications, 25:323-330, doi:10.1144/GSL.SP.1986.025.01.26 --- N. Thouveny and M. Taieb: Preliminary magnetostratigraphic record of Pleistocene deposits, Lake Natron Basin, Tanzania / Geological Society, London, Special Publications, 25:331-336, doi:10.1144/GSL.SP.1986.025.01.27 --- Sedimentation and the Preservation of Fossil Faunas --- R. L. Hay: Role of tephra in the preservation of fossils in Cenozoic deposits of East Africa / Geological Society, London, Special Publications, 25:339-344, doi:10.1144/GSL.SP.1986.025.01.28 --- M. Pickford: Sedimentation and fossil preservation in the Nyanza Rift System, Kenya / Geological Society, London, Special Publications, 25:345-362, doi:10.1144/GSL.SP.1986.025.01.29 --- C. Denys, J. Chorowicz, and J. J. Tiercelin: Tectonic and environmental control on rodent diversity in the Plio-Pleistocene sediments of the African Rift System / Geological Society, London, Special Publications, 25:363-372, doi:10.1144/GSL.SP.1986.025.01.30