scholarly journals Noble gas residence times of saline waters within crystalline bedrock, Outokumpu Deep Drill Hole, Finland

2014 ◽  
Vol 145 ◽  
pp. 159-174 ◽  
Author(s):  
Riikka Kietäväinen ◽  
Lasse Ahonen ◽  
Ilmo T. Kukkonen ◽  
Samuel Niedermann ◽  
Thomas Wiersberg
Keyword(s):  
Noble Gas ◽  
Drill Hole ◽  
Residence Times ◽  
Crystalline Bedrock ◽  
Saline Waters

The chemistry and isotopic composition of saline groundwaters from the Sudbury Basin, Ontario

1982 ◽  
Vol 19 (4) ◽  
pp. 645-661 ◽  
Author(s):  
S. K. Frape ◽  
P. Fritz
Keyword(s):  
Drill Hole ◽  
Shallow Waters ◽  
Isotopic Data ◽  
Subsurface Environment ◽  
Sulphide Ores ◽  
Groundwater Samples ◽  
Isotopic Analyses ◽  
Saline Waters ◽  
Shallow Wells ◽  
Drill Holes

The results of geochemical and isotopic analyses are discussed for groundwater samples obtained from five mines and several shallow wells in the Sudbury Basin. Mine samples were usually obtained from abandoned diamond drill holes or fractures, which were found from depths of 152–1219 m (500–4000 ft). Two very distinctive water types are recognized in the subsurface environment. Fresh to brackish waters were found from surface to approximately 800 m (2600 ft) in depth. However, below 914 m (3000 ft) very saline or briny waters occur at most of the localities sampled. The geochemistry of the shallow waters shows gradual increases in concentration for most elements; locally effects from the proximity of sulphide ores or drill hole grouting were observed. Isotopic data (2H, 18O, and tritium) indicate that the major component of these waters is less than 30 years of age and represents local meteoric waters. The saline waters have dissolved loads often in excess of 200 g∙L−1 and are dominated by calcium and chloride. The chemistry and isotopic contents of the Sudbury brines are very distinct from highly saline waters or brines of sedimentary or geothermal origin. The brines appear to represent very old, stagnant "groundwaters," which may have undergone prolonged chemical and isotopic alteration since their original emplacement. At the present a variety of possible origins for the deep Sudbury waters can be postulated, but most models for brine formation found in the literature are unsatisfactory to explain the origin and genesis of these deep Canadian Shield brines.

Characterisation and isotopic evolution of saline waters of the Outokumpu Deep Drill Hole, Finland – Implications for water origin and deep terrestrial biosphere

2013 ◽  
Vol 32 ◽  
pp. 37-51 ◽  
Author(s):  
Riikka Kietäväinen ◽  
Lasse Ahonen ◽  
Ilmo T. Kukkonen ◽  
Nina Hendriksson ◽  
Mari Nyyssönen ◽  
...  
Keyword(s):  
Drill Hole ◽  
Terrestrial Biosphere ◽  
Water Origin ◽  
Saline Waters ◽  
Isotopic Evolution

Interactions of noble gas atoms. Processes due to elastic scattering

1989 ◽  
Vol 14 (5) ◽  
pp. 467-604 ◽  
Author(s):  
A.Z. Devdariani ◽  
A.L. Zagrebin ◽  
K.B. Blagoev
Keyword(s):  
Elastic Scattering ◽  
Noble Gas

Dosimetry with 188Re-labelled monoclonal anti-CD66 antibodies

2006 ◽  
Vol 45 (03) ◽  
pp. 134-138 ◽  
Author(s):  
T. Kull ◽  
N. M. Blumstein ◽  
D. Bunjes ◽  
B. Neumaier ◽  
A. K. Buck ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Bone Marrow ◽  
Gamma Camera ◽  
Absorbed Dose ◽  
Correlation Coefficients ◽  
Residence Times ◽  
Reliable Prediction ◽  
Red Bone Marrow ◽  
Antibody Preparation ◽  
Simplified Method

SummaryAim: For the therapeutic application of radiopharmaceuticals the activity is determined on an individual basis. Here we investigated the accuracy for a simplified assessment of the residence times for a 188Re-labelled anti-CD66 monoclonal antibody. Patients, methods: For 49 patients with high risk leukaemia (24 men, 25 women, age: 44 ± 12 years) the residence times were determined for the injected 188Re-labelled anti-CD66 antibodies (1.3 ± 0.4 GBq, 5–7 GBq/mg protein, >95% 188Re bound to the antibody) based on 5 measurements (1.5, 3, 20, 26, and 44 h p.i.) using planar conjugate view gamma camera images (complete method). In a simplified method the residence times were calculated based on a single measurement 3 h p.i. Results: The residence times for kidneys, liver, red bone marrow, spleen and remainder of body for the complete method were 0.4 ± 0.2 h, 1.9 ± 0.8 h, 7.8 ± 2.1 h, 0.6 ± 0.3 h and 8.6 ± 2.1 h, respectively. For all organs a linear correlation exists between the residence times of the complete method and the simplified method with the slopes (correlation coefficients R > 0.89) of 0.89, 0.99, 1.23, 1.13 and 1.09 for kidneys, liver, red bone marrow, spleen and remainder of body, respectively. Conclusion: The proposed approach allows reliable prediction of biokinetics of 188Re-labelled anti-CD66 monoclonal antibody biodistribution with a single study. Efficient pretherapeutic estimation of organ absorbed dose may be possible, provided that a more stable anti-CD66 antibody preparation is available.

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