Provenance of ArenitesG.G. Zuffa Gian Gaspare Zuffa Dipartimento di Scienze della Terra Universitä della Calabria 87030 Castiglione Cosentino Stazione, Cosenza, ITALY The tradition has been to consider Sedimentology and Sedimen tary Petrology as quite separate areas of research. It is however impossible to arrive at an optimal description of sedimentary rocks without integrating the two fields since sedimentary processes and compositional aspects are strongly intertwined. The study of arenites is of particular importance in obtaining paleogeographic and paleotectonic reconstructions aimed at deter mining the geodynamics of the earth's crust. It also has important implications in exploration for and exploitation of hydrocarbons. At the NATO ASI Meeting on Reading Provenance from Arenites held in Calabria (Italy), June 3-ll, 1984, field sedimentologists and sedimentary petrologists were given opportunity to pool their resources in order to obtain better analyses of both source areas and depositional basins. The papers collected in this volume represent an edited ver sion of the lectures given and provide a comprehensive picture of the present state of the art since they include such important top ics as: l) the climate and relief of the source areas, 2) mechani cal transport of sediments and depositional processes, 3) postdep ositional processes, and 4) the methodology adopted for petrogra phic optical analyses. Particular attention has been paid to the limitations and errors introduced into paleogeographic and paleo tectonic reconstructions by incomplete and incorrect data. |
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Page 3
... tectonic regime of highlands also control to a large extent the relief and the rigour of transport . Usually , rigour of transport is often associated with distance of transport which may be dependent on tectonic setting . For example ...
... tectonic regime of highlands also control to a large extent the relief and the rigour of transport . Usually , rigour of transport is often associated with distance of transport which may be dependent on tectonic setting . For example ...
Page 67
... tectonic uplift or eustatic fall of sea level shortly after sufficiently long periods of highstand charac- terized by high rates of terrigenous sedimentation . Such settings are apparently those of many elongate flysch basins of thrust ...
... tectonic uplift or eustatic fall of sea level shortly after sufficiently long periods of highstand charac- terized by high rates of terrigenous sedimentation . Such settings are apparently those of many elongate flysch basins of thrust ...
Page 83
... tectonic confinement and consequent anomalous thickness of turbidite sandstone bodies , these settings should resemble those of divergent continental margins . Figure 12 depicts smaller settings in areas of strong tectonic control . The ...
... tectonic confinement and consequent anomalous thickness of turbidite sandstone bodies , these settings should resemble those of divergent continental margins . Figure 12 depicts smaller settings in areas of strong tectonic control . The ...
Contents
INFLUENCE OF TRANSPORT PROCESSES AND BASIN GEOMETRY ON SAND | 19 |
LOCAL MORPHOLOGIC CONTROLS AND EFFECTS OF BASIN GEOMETRY | 47 |
TURBIDITE SYSTEMS AND THEIR RELATIONS TO DEPOSITIONAL | 67 |
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albitization America Bull arenites arkosic authigenic Basu calcite carbonate cathodoluminescence channel channel-fill chemical chert clastic clasts clay climate Cratonic Cretaceous crystals deep-sea depositional depth detrital detrital modes detrital quartz diagenesis diagenetic Dickinson dissolution electron environments Eocene epidote extrabasinal facies feldspar Figure flows fluvial flysch Formation garnet Geol Geology glaucony green grains heavy minerals hydraulic indicate interpretation intrabasinal Jour K-feldspar Krinsley magmatic arcs marine berthierine metamorphic rocks monocrystalline quartz Monterey Fan Mutti Normark Odin origin orogenic parent rocks particles petrofacies petrographic Petrology plagioclase Plate plutonic polycrystalline pores porosity processes provenance quartz quartz grains quartzose ratios recycled orogenic result Ricci Lucchi rock fragments samples sand grains sands derived sandstones sea level secondary porosity sedimentary Sedimentology sediments sequences slope source area source rocks stage submarine fans substrate Suczek Suttner terrigenous tion transport turbidite turbidite systems turbidity currents types undulosity uplift Valloni volcanic weathering Zinkernagel zone Zuffa