A Photographic Record of the Upper Headwater Tributaries, Basins and Riparia of the Snake River
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Geomorphology and stratigraphy of the Ambrona site (central Spain)
The Lower Acheulian site of Ambrona (Fig. 1A)–like the Torralba site 2.5 km south–occupies a singular position in the NW Iberian Range due to its relation with an Tertiary and Quaternary karstic landscape and with three large hydrographic basins of the Iberian Peninsula: those of the rivers Duero and Tajo (both Atlantic) and the Ebro-Jalón Mediterranean basin. Since the Lower Pleistocene, the r...
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Widespread use of pharmaceuticals has resulted in mixture concentrations ranging from mg/L in effluent to µg/L concentrations in surface water. In a 2008 study, 13 pharmaceuticals, ranging in amounts from 0.0028 to 0.1757 µg/l, were identified in the Tennessee River, USA and its tributaries. In order to address the need for risk assessment of environmentally relevant pharmaceutical mixtures, <e...
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