scholarly journals 87 Sr/ 86 Sr as a quantitative geochemical proxy for 14 C reservoir age in dynamic, brackish waters: Assessing applicability and quantifying uncertainties

2016 ◽  
Vol 43 (2) ◽  
pp. 735-742 ◽  
Author(s):  
Bryan C. Lougheed ◽  
H. J. L. Lubbe ◽  
Gareth R. Davies
Keyword(s):  
Brackish Waters ◽  
Reservoir Age ◽  
Geochemical Proxy

LIP-PRINTING: A GEOCHEMICAL PROXY APPROACH TO LIP FORENSICS

2017 ◽  
Author(s):  
Julian A. Pearce ◽  
◽  
Richard E. Ernst ◽  
Chris Rogers ◽  
David W. Peate
Keyword(s):  
Geochemical Proxy

EXPANSION OF ANOXIA/EUXINIA AS DRIVER FOR EARLY SILURIAN EXTINCTION EVENTS: NEW SEDIMENTARY AND GEOCHEMICAL PROXY DATA FROM BALTICA

2017 ◽  
Author(s):  
Emily Benayoun ◽  
◽  
Seth A. Young ◽  
Jeremy D. Owens ◽  
Mats E. Eriksson ◽  
...  
Keyword(s):  
Proxy Data ◽  
Extinction Events ◽  
Geochemical Proxy

Revisiting the marine reservoir age in Baja California continental margin sediments using 14C and 210Pb dating

2021 ◽  
pp. 101178
Author(s):  
Christina Treinen-Crespo ◽  
Loïc Barbara ◽  
Julio A. Villaescusa ◽  
Sabine Schmidt ◽  
Ann Pearson ◽  
...  
Keyword(s):  
Continental Margin ◽  
Baja California ◽  
210Pb Dating ◽  
Reservoir Age

scholarly journals A Revised Radiocarbon Chronology of the Aceramic Shell Midden of Ra’s Al-Hamra 6 (Muscat, Sultanate of Oman): Implication For Occupational Sequence, Marine Reservoir Age, and Human Mobility

Radiocarbon ◽  
2016 ◽  
Vol 58 (2) ◽  
pp. 383-395 ◽  
Author(s):  
Antoine Zazzo ◽  
Olivia Munoz ◽  
Emilie Badel ◽  
Irène Béguier ◽  
Francesco Genchi ◽  
...  
Keyword(s):  
Human Mobility ◽  
Human Bone ◽  
Archaeological Sites ◽  
Sultanate Of Oman ◽  
Shell Midden ◽  
Time Period ◽  
Entire Sequence ◽  
Radiocarbon Chronology ◽  
Reservoir Age ◽  
Bone Apatite

AbstractRa’s al-Hamra 6 (RH-6) is one of the earliest stratified archaeological sites along the eastern littoral of the Arabian Peninsula. This shell midden was radiocarbon dated to the 6th–5th millennium cal BC, but the majority of the dates were obtained before the advent of accelerator mass spectrometry (AMS) 14C dating and suffer from large uncertainties. In addition, most of these dates were obtained on marine and mangrove shells and required correction for local variations from the global average marine 14C reservoir age (MRA). This proved difficult because no consensus value exists for this period in the area. Recent excavations at RH-6 offered the opportunity to redate this important site in order to precisely determine its occupation history and later use as a graveyard, and establish the marine reservoir effect for this time period. Thirty-eight samples of charcoal, shells, and human bone apatite were selected for 14C dating. Bayesian modeling of the 14C dates suggests that the formation of the shell midden spanned ~1 millennium, between the mid-6th and the mid-5th millennium cal BC. Positive and consistent ΔR values were calculated throughout the entire sequence, ranging from 99±27 to 207±43 14C yr. At the beginning of the 4th millennium cal BC, RH-6 was used as a graveyard, as suggested by the 14C dating of a shell in strict association with an individual buried at the surface of the site. 14C dating of human bone apatite allowed us to calculate that 89% of this individual’s diet derived from marine resources. This finding confirms previous observations showing the overwhelming presence of marine and mangrove-dwelling species in the faunal and charcoal assemblage, and implies a low mobility, or mobility restricted to the coast for this population during the 4th millennium cal BC.

The Mosquitos of the Island of Corfu, Greece

1938 ◽  
Vol 29 (3) ◽  
pp. 251-251 ◽  
Author(s):  
Theodore Stephanides
Keyword(s):  
Sufficient Data ◽  
White Poplar ◽  
Brackish Waters ◽  
Wood Debris ◽  
Olive Trees ◽  
Decaying Wood

The following mosquitos should be added to the list given in my earlier paper on this subject (Bull. Ent. Res. 28, 1937, pp. 405—407).1. Anopheles elutus, Edwards.The larvae are found in the same habitats as those of A. maculipennis, but seem to show a greater preference for waters near the sea-shore. A. elutus appears to be considerably rarer in Corfu than A. maculipennis, but sufficient data are not yet to hand to settle this question.2. Anopheles plumbeus, Stephens.Not common. I have obtained the larvae from the rot-holes of oak, elm and white poplar, but never so far from those of olive-trees. They favour deep holes containing plenty of rotting material.3. Aëdes (Ochlerotatus) caspius, Pallas.The larvae are sometimes present in fresh, but more frequently in slightly brackish waters. They are often gregarious with the larvae of O. detritus, Hal., but are much less abundant than the latter.4. Aëdes (Ochlerotatus) pulchritarsis, Rondani.The larvae live in rot-holes of oak, elm and white poplar, and are sometimes met with in considerable numbers in the same hole. They prefer holes in which the collected water has become thick and very dark amber in colour owing to the presence of decaying wood debris.5. Orthopodomyia pulchripalpis, Rondani.The larvae are found in the same habitats as those of O. pulchritarsis and are often gregarious with the latter. They are less plentiful, on the whole, than O. pulchritarsis and prefer somewhat clearer water.Note.—In my paper referred to above I mentioned that Finlaya echinus, Edw., is commoner in Corfu than F. geniculatus, Oliv. This statement is due to an error of determination arising from the fact that in many of the Corfu larvae of F. geniculatus the bristles of the abdominal tufts are somewhat more developed than those described in some text-books.

Gastrotricha from Italian brackish water environments with the description of a new species of Chaetonotus

1999 ◽  
Vol 79 (4) ◽  
pp. 585-592 ◽  
Author(s):  
P. Tongiorgi ◽  
E. Fregni ◽  
M. Balsamo
Keyword(s):  
New Species ◽  
Brackish Water ◽  
Systematic Sampling ◽  
Coastal Lakes ◽  
Brackish Waters ◽  
Freshwater Habitats ◽  
Sampling Programme ◽  
First Time ◽  
River Po ◽  
A New Species

During 1996–1997 a systematic sampling programme was carried out in brackish coastal lakes and lagoons and in the delta of the River Po. In six of the nine collecting locations, 12 species of Gastrotricha were identified. One species, Chaetonotus ichthydioides, is new to science; another three species, the chaetonotidans Heterolepidoderma foliatum and the macrodasyidans Dendrodasys ponticus and Turbanella cf. pontica, and one macrodasyidan genus, Paradasys (P. subterraneus), were found in Italy for the first time. The unusual morphology of some of the species identified shows that Gastrotricha colonized brackish waters from both marine and freshwater habitats.

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