Results 121 to 130 of about 71,351 (309)
Guide to the nature and methods of analysis of the clay fraction of tephras from the South Auckland region, New Zealand. [PDF]
, 1983 The manual outlines some of the more common laboratory procedures available for qualitatively and quantitatively analysing the composition of the tephric clays, many of which are difficult to determine because of their short range order or 'amorphous ...
Nelson, Campbell S., Lowe, David J.
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The Anatomical Record, EarlyView.Abstract This study presents the first detailed description of bioerosion traces produced by insects in bones from the Santa Cruz Sequence (early Carnian, Santa Maria Supersequence, Brazil). An array of traces is reported, consisting of notches, a tube, trails of grooves attributed to the ichnotaxon Osteocallis mandibulus and ornamented depressions ...
Lucca S. Cunha +2 more
wiley +1 more source
(Table 2) Grain size composition of Pacific deep sea red clays between 17 and 23°N
, 1986 (Table 2) Grain size composition of Pacific deep sea red clays between 17 and 23°
Orlova, L V +3 more
core +1 more source
Sport, Agency and Pigeon Snaring in the Ancient Tongan Chiefdom
Archaeology in Oceania, EarlyView.ABSTRACT Pigeon snaring was an élite sport in the traditional Tongan chiefdom, undertaken on purpose‐built mounds known as sia heu lupe. LiDAR imagery combined with field survey and mound documentation on the island of Tongatapu has identified a comprehensive corpus of these sites.
David V. Burley +3 more
wiley +1 more source
UV Protection Ability of Latvian Illite Clays
UV radiation is well known for its harmful effect on human health and can cause sunburn, premature skin aging and skin cancer. Both organic and inorganic compounds are being used in sunscreens as UV filters.
Mālers, Juris +3 more
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A preliminary report on the clays of South Carolina [PDF]
, 1904 This book discusses clays of South Carolina including the general characteristics of clays, general geological conditions, classes of clay deposits, varieties of clay, mining of clays, geological occurrence and areal distribution of South Carolina ...
South Carolina Geological Survey +1 more
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Archaeological Prospection, EarlyView.ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet +9 more
wiley +1 more source
Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection
Archaeological Prospection, EarlyView.ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken +5 more
wiley +1 more source
Treatment of Illitic Clays from Latvia with Organic Acids
Naturally occurring clays typically are mixtures of clay minerals and non-clay minerals, such as quartz, feldspar, carbonates, metal oxides and hydroxides.The use of particular clays often depends on their mineralogical composition, because the presence ...
Vecstaudža, Jana +4 more
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The objective of this study is to utilize a simulation employing advanced oxidation processes (AOPs) from photodegradation to examine the treatment of textile effluents.
Beatriz P. Dias +3 more
core +1 more source