Results 151 to 160 of about 345,840 (384)
On the Cretaceous Formation of Bahia (Brazil), and on Vertebrate Fossils collected therein [PDF]
, 1907 Joseph C. Mawson, Arthur Smith Woodward
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Journal of Raman Spectroscopy, EarlyView.Palynofacies assemblages from the onshore Potiguar Basin display a wide thermal maturity range, with vitrinite reflectance (%Ro) values of 0.46–2.72 measured from nine samples at depths of 1059–4443 m. A strong correlation exists between %Ro and Raman parameters, specifically the G‐band's full width at half maximum.
Gabriel A. Barberes +14 more
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Journal of Raman Spectroscopy, EarlyView.This work contributes to the literature on the detection of MPs in Greece, proposes a method for MPs extraction in remote environments taking into account fieldwork constraints of an expedition in the Greek Alps, and takes a step forward in MPs analysis by Raman spectroscopy. ABSTRACT Water samples from the alpine lake of Mt.
Christos Salmas +4 more
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Nuttalliellidae in Burmese amber: implications for tick evolution
ParasitologyTicks are composed of 3 extant families (Argasidae, Ixodidae and Nuttalliellidae) and 2 extinct families (Deinocrotonidae and Khimairidae). The Nuttalliellidae possess one extant species (Nuttalliella namaqua) limited to the Afrotropic region.
Lidia Chitimia-Dobler +5 more
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Journal of Raman Spectroscopy, EarlyView.This paper presents a new protocol for the laboratory preparation of archaeological samples. Ceramics that have been hand‐crafted using different sediments as raw materials were collected in a Roman Villa sited in Fiumana (FC), Italy. This method aims at concentrating and analysing heavy minerals in the 15–250 μm grain size fraction, studying the ...
S. Andò +6 more
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I.—Notes on some Upper Cretaceous Fish-remains from the Provinces of Sergipe and Pernambuco, Brazil [PDF]
, 1907 Arthur Smith Woodward
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Abstract The Upper Cretaceous is one of the rare stratigraphic intervals in the Netherlands that can be studied in outcrop. The quarrying of chalky limestone and interbedded chert nodules in South Limburg has contributed to the study of these rocks and their notable fossil content.
Henk van Lochem +2 more
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II.—On the Cretaceous Aporrhaïdæ [PDF]
Geological Magazine, 1875 When I commenced these notes at the beginning of this year, I expressed a regret that “I cannot include the Aptien and Neocomian species, but the collections at present open to me are too meagre to give anything like a complete account of them.
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Limnology and Oceanography, EarlyView.Abstract The partial pressure of carbon dioxide (pCO2) in rivers is influenced by carbonate weathering, soil CO2, photosynthesis, and the mineralization of dissolved organic carbon (DOC). In tropical regions, elevated temperatures intensify these processes. However, their seasonal dynamics remain poorly understood in large karst‐draining rivers.
Daniel Cuevas‐Lara +5 more
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International Journal of Osteoarchaeology, EarlyView.ABSTRACT From the Late Preclassic to Terminal Classic periods (300 bce–900 ce), the Maya people at the site of Caledonia, Cayo District, Belize, interred their dead within site architecture. Four burials containing the remains of at least 21 individuals were uncovered during excavations and were relatively dated using typologies developed from the ...
Asta J. Rand +4 more
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