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Journal Article
Published: 30 May 2023
Geochemistry: Exploration, Environment, Analysis (2023) 23 (2): geochem2022-054.
... (high-field-strength elements Zr, Hf, Nb, Ta, Ti and Eu and transition elements V and Sc) was analysed by 4AD and alkali fusion/acid digestion (AFAD). Lower recoveries in the 4AD relative to the AFAD were recorded for Zr, Hf, Nb, Ta, Ti and Eu; Sc and V reported similar concentrations for both...
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Journal Article
Published: 01 April 2023
Geochemical Perspectives (2023) 12 (1): 142–149.
.... , Baumann , P. , Daniel , H. , Hartmann , J. , Hechtl , E. , Ackerbauer , P. , Kammel , P. , Scrinzi , A. , Zmeskal , H. , Kozlowski , T. , Kipfer , R. , Baur , H. , Signer , P. , Wieler , R. ( 1989 ) Experimental investigation of cold fusion phenomena...
Journal Article
Journal: Geophysics
Published: 24 September 2021
Geophysics (2021) 86 (6): M185–M196.
... in data mining and the idea of ensemble learning, a deep convolutional GRU (DCGRU) fusion network algorithm was developed. The root-mean-square error (rms error) was adopted as the loss function. Dropout, ReduceLROnPlateau, and early stopping methods were used to avoid overfitting. The optimal DCGRU...
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Journal Article
Published: 01 February 2017
American Mineralogist (2017) 102 (2): 445–460.
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Journal Article
Published: 01 June 2012
European Journal of Mineralogy (2012) 24 (3): 499–507.
... of the fulgurite were implemented in order to quantify the fusion behaviour, the expansion of the fulgurite as well as the distribution of the stressed quartz crystals. The study of the neutron diffraction pattern was carried out by applying an integral breadth method, more precisely a Rietveld and a LeBail strain...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2397(10)
... With the introduction of many new types of remotely sensed imagery in recent years, opportunities to compare and integrate these data abound. In this paper, we present a hue-saturation-value (HSV) transformation approach for the fusion of surface roughness and shallow subsurface information...
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Journal Article
Published: 01 January 2003
American Mineralogist (2003) 88 (1): 109–120.
...Rebecca A. Lange Abstract The 1bar, thermodynamic properties of crystalline and liquid NaAlSi 3 O 8 are used to calculate the fusion curve of albite to 10 kbar. The calculated temperatures (±2σ) of the melting reaction are 1152 (±7) °C at 3 kbar and 1247 (±24) °C at 10 kbar. The location...
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Journal Article
Journal: Geology
Published: 01 October 2001
Geology (2001) 29 (10): 899–902.
... land surface being exhumed by deflation and water erosion. The slabs of melt are associated with outcrops of baked sediment having very similar geochemistry, suggesting an origin by in situ surface fusion. Embedded clasts displaying shock metamorphism in quartz suggest that the thermal source may have...
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Journal Article
Published: 01 August 1999
Mineralogical Magazine (1999) 63 (4): 473–488.
...M. J. Genge; M. M. Grady Abstract The fusion crusts of meteorites form due to heating during atmospheric entry and have mineralogies which are strongly influenced by changes in oxidation state. We have studied the fusion crusts of the most reduced primitive meteorite group, the enstatite chondrites...
Journal Article
Published: 01 July 1999
Journal of Paleontology (1999) 73 (4): 682–690.
...Margery C. Coombs; Bruce M. Rothschild Abstract In four genera of schizotheriine Chalicotheriidae-Moropus, Tylocephalonyx, Phyllotillon, and Ancylotherium-proximal and middle phalanges of digit II of the manus fuse to form a duplex bone. Fusion of proximal and middle phalanges of digit II...
Journal Article
Published: 01 June 1995
Mineralogical Magazine (1995) 59 (2): 267–271.
Journal Article
Journal: GSA Bulletin
Published: 01 October 1994
GSA Bulletin (1994) 106 (10): 1304–1318.
... and small-volume tuffs with the widespread outflow sheets of the SWNVF. New laser fusion 40 Ar/ 39 Ar isotopic ages are used to refine and revise the timing of eruptive activity in the SWNVF. The use of high-sensitivity mass spectrometry allowed analysis of submilligram-sized samples with analytical...
Journal Article
Published: 01 September 1990
Journal of Paleontology (1990) 64 (5): 831–841.
Journal Article
Journal: Geology
Published: 01 August 1990
Geology (1990) 18 (8): 741–744.
...S. Scaillet; G. Féraud; Y. Lagabrielle; M. Ballévre; G. Ruffet Abstract 40 Ar/ 39 Ar laser-probe dating of phengitic micas has been carried out by step-heating and spot-fusion procedures. These micas represent successive deformation stages in the structural evolution of the internal Dora Maira...
Journal Article
Journal: Geology
Published: 01 April 1989
Geology (1989) 17 (4): 307–310.
...J. Arkani-Hamed; Wayne T. Jolly Abstract Thermal evolution models of young subducting oceanic plates under Archean conditions suggest that tholeiitic basalts in the subducting wet crust melted at shallow depths (50 to 80 km) and produced Archean tonalites. The latent heat of fusion consumed...
Journal Article
Published: 01 October 1986
American Mineralogist (1986) 71 (9-10): 1061–1070.
...) a simple criterion for distinguishing between eutectic and peritectic points and (2) procedures for calculating crystal and liquid paths for equilibrium crystallization and fusion. For a given bulk composition, points on crystal and liquid paths are calculated by trial-and-error searches of balanced...
Journal Article
Published: 01 April 1984
American Mineralogist (1984) 69 (3-4): 292–297.
Journal Article
Published: 01 August 1983
American Mineralogist (1983) 68 (7-8): 717–730.
.../mol. These data can be combined with published results on heats of vitrification and the heat capacities of solids to yield heats of fusion, in kcal/mol: Di 33.0±0.5 (1665 K); Ab: 15.0±0.5 (1373 K); Sa: 13.8±1.0 (metastable, 1473 K); and Ne: 11.7±0.5 (metastable, 1750 K). Albite liquid prepared...
Journal Article
Journal: GSA Bulletin
Published: 01 July 1983
GSA Bulletin (1983) 94 (7): 926–935.
... in which they occur, with some systematic variations, thus indicating in situ formation. The textures of the pseudotachylites indicate that they formed predominantly by mechanical processes, but temperatures were locally high enough to cause thermal metamorphism and possibly fusion. The host rocks...
Journal Article
Journal: Geology
Published: 01 February 1983
Geology (1983) 11 (2): 105–108.
..., or by crushing and cataclasis. The observations are consistent with these pseudotachylytes having formed by frictional fusion followed by rapid quenching—implying faulting at shallow crustal depths. Geological Society of America 1983 ...