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Beveridge, John (SC 3660)
No full textFinding aid and scan (Click on Additional Files below) for Manuscripts Small Collection 3660. Acknowledgment, 2 December 1826, of John Beveridge, Milnathort, Scotland, of wages owed to David Anderson and son; and direction, 31 March 1827, to shoemaker Andrew Morison to offset a debt owed to Beveridge by delivering a pair of shoes to Anderson as part of the settlement. The reverse includes notes of labor performed by Anderson for one Robert Ritchie
Block Card 3660 Lynbrook Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: 3660 Lynbrook Drive (Toledo, Ohio) | Crossgates Plat (Toledo, Ohio) | South Toledo Area (Toledo, Ohio) | Cape Cod Style | Dwellin
Block Card 3660 Dixie Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 3660 Dixie Drive (Toledo, Ohio) | Ranch houses | Ratterrees Boulevard Terrace | Buckeye Basin (Toledo, Ohio) | North Toledo (Toledo, Ohio
Block Card 3660 Berdan Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 3660 Berdan Avenue (Toledo, Ohio) | Folk House Style | Almeda Heights Second Addition (Toledo, Ohio) | Willys Park area (Toledo, Ohio) | West Toledo (Toledo, Ohio
Block Card 3660 Rushland Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: English Cottage Style | Dwelling | 3660 Rushland Avenue (Toledo, Ohio) | Extension of Forest View Addition (Toledo, Ohio) | Deveaux Area (Toledo, Ohio) | West Toledo (Toledo, Ohio
The Itsaq Gneiss Complex of Greenland: Episodic 3900 to 3660 Ma juvenile crust formation and recycling in the 3660 to 3600 Ma Isukasian orogeny
No full textFrom the 3000 km2 Eoarchean Itsaq Gneiss Complex (IGC) of Greenland, zircon U-Pb dating of numerous meta-granitoid and orthogneiss samples is integrated with geologic observations, whole rock geochemistry and a strategic subset of zircon Hf and whole rock Nd isotopic measurements. This shows that there are multiple episodes of TTG suite formation from ∼3890 to 3660 Ma, characterized by zircon initial εHf≈0 and whole rock initial εNd of > +2. These rocks mostly have geochemical signatures of partial melting of eclogitized mafic sources, with a subset of high magnesian, low silica rocks indicating fusion by fluid fluxing of upper mantle sources. The TTG suites are accompanied by slightly older gabbros, basalts and andesites, which have geochemical signatures pointing to magmas originating from fluid fluxing of upper mantle sources. The data show the formation of juvenile crust domains in several discrete events from ∼3900 to 3660 Ma, probably at convergent plate boundaries in an environment analogous, but not identical to, modern island arcs. In the Isua area, a northern ∼3700 Ma terrane formed distal from a predominantly ∼3800 Ma terrane. These terranes were juxtaposed between 3680 and 3660 Ma—respectively the age of the youngest rocks unique to the northern terrane and the lithologically distinctive ultramafic-granitic Inaluk dykes common to both terranes. This shows the assembly of different domains of juvenile rocks to form a more expansive domain of “continental” crust. A rare occurrence of high-pressure granulite is dated at ∼3660 Ma, demonstrating that assembly involved tectonic crustal thickening. This continental crust was then reworked in the 3660 to 3600 Ma Isukasian orogeny. In the northern part of the Isua area, 3660 to 3600 Ma granites were emplaced into ∼3700 Ma tonalites. The earliest granites are nebulous, and sigmoidal schlieric inclusions within them demonstrate ductile extension. Younger granite sheets were emplaced into extensional ductile-brittle fractures. These granite-tonalite relationships are overprinted by widespread development of late Eoarchean (pre-3500 Ma Ameralik dyke) brittle-ductile extensional cataclastic textures, together demonstrating that extension was polybaric. The southern part of the Isua area largely escaped 3660 to 3600 Ma high temperature processes and has sparse granite sheets commonly focused into coeval shear zones. In the rest of the complex, deeper crustal levels during the Isukasian orogeny are widely preserved. These experienced upper amphibolite to granulite facies moderate- to low-pressure syn-kinematic metamorphism, forming complex migmatites rich in granitic-trondhjemitic neosome. The migmatites were intruded by composite ferrogabbro and granite bodies, in which syn-magmatic extensional features are locally preserved. Thus 3660 to 3600 Ma crustal recycling involved elevated crustal thermal gradients in an extensional regime. Crustal melts formed in the Isukasian orogeny have zircon initial εH
Preparation and Certification of IRMM-3660, IRMM-3660a and IRMM-3660b
No full textIsotope reference materials IRMM-3660 was prepared by dissolution of highly enriched 99.97% 236U in nitric acid. IRMM-3660a and IRMM-3660b were prepared from IRMM-3660 by gravimetrical dilution.
The certified isotope content values for IRMM-3660 of 4.23651(43)*10-6 mol U per g of solution, IRMM-3660a of 4.22498(44)*10-7 mol U per g of solution and for IRMM-3660b of 4.2655(11)*10-8 mol U per g of solution have been established by mass metrology. The methodology used in the preparation and certification was similar to that of comparable uranium reference materials made in the past. The certified amount ratios were established by a TRITON TIMS using Faraday collectors and a secondary electron multiplier in combination with an RPQ energy filter for improved abundance sensitivity. Verification of the isotope amount content of IRMM-3660 was performed by IDMS using the TRITON TIMS.
The uncertainties contributing to the final uncertainties of the isotopic ratios are the weighing errors, the measured impurities in the starting material, the stoichiometry of the oxide and the isotopic abundances of the primary base materials. The method for the preparation is described and the certification procedure is reported.
The Isotopic Reference Materials IRMM-3660, IRMM-3660a and IRMM-3660b are part of a systematic IRMM programme to supply Isotopic Reference Materials of various isotopes at different concentrations. The Isotopic Reference Material is supplied in a sealed quartz ampoule containing 1 mL of a 1 M nitric acid solution.JRC.D.4 - Isotope measurement
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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