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  • 1
    Keywords: Südostasien ; Erdölgeologie ; Erdöl ; fossile Brennstoffe ; Geologie ; Kohlenwasserstofflagerstätte ; Geology ; Petroleum ; Southeast Asia
    Description / Table of Contents: A. J. Fraser and S. J. Matthews: Petroleum geology of SE Asia: an introduction / Geological Society, London, Special Publications, 126:1-2, doi:10.1144/GSL.SP.1997.126.01.01 --- Chris Sladen: Energy trends in SE Asia / Geological Society, London, Special Publications, 126:3-10, doi:10.1144/GSL.SP.1997.126.01.02 --- Robert Hall: Cenozoic plate tectonic reconstructions of SE Asia / Geological Society, London, Special Publications, 126:11-23, doi:10.1144/GSL.SP.1997.126.01.03 --- S. P. Todd, M. E. Dunn, and A. J. G. Barwise: Characterizing petroleum charge systems in the tertiary of SE Asia / Geological Society, London, Special Publications, 126:25-47, doi:10.1144/GSL.SP.1997.126.01.04 --- Chris Sladen: Exploring the lake basins of east and southeast Asia / Geological Society, London, Special Publications, 126:49-76, doi:10.1144/GSL.SP.1997.126.01.05 --- Coen T. A. M. Leo: Exploration in the Gulf of Thailand in deltaic reservoirs, related to the Bongkot Field / Geological Society, London, Special Publications, 126:77-87, doi:10.1144/GSL.SP.1997.126.01.06 --- S. J. Matthews, A. J. Fraser, S. Lowe, S. P. Todd, and F. J. Peel: Structure, stratigraphy and petroleum geology of the SE Nam Con Son Basin, offshore Vietnam / Geological Society, London, Special Publications, 126:89-106, doi:10.1144/GSL.SP.1997.126.01.07 --- R. H. Worden, M. J. Mayall, and I. J. Evans: Predicting reservoir quality during exploration: lithic grains, porosity and permeability in Tertiary clastic rocks of the South China Sea basin / Geological Society, London, Special Publications, 126:107-115, doi:10.1144/GSL.SP.1997.126.01.08 --- M. J. Mayall, A. Bent, and D. M. Roberts: Miocene carbonate buildups offshore Socialist Republic of Vietnam / Geological Society, London, Special Publications, 126:117-120, doi:10.1144/GSL.SP.1997.126.01.09 --- A. Wight, H. Friestad, I. Anderson, P. Wicaksono, and C. H. Reminton: Exploration history of the offshore Southeast Sumatra PSC, Java Sea, Indonesia / Geological Society, London, Special Publications, 126:121-142, doi:10.1144/GSL.SP.1997.126.01.10 --- Craig Schiefelbein and Nick Cameron: Sumatra/Java oil families / Geological Society, London, Special Publications, 126:143-146, doi:10.1144/GSL.SP.1997.126.01.11 --- J. M. Cole and S. Crittenden: Early Tertiary basin formation and the development of Lacustrine and quasi-lacustrine/marine source rocks on the Sunda Shelf of SE Asia / Geological Society, London, Special Publications, 126:147-183, doi:10.1144/GSL.SP.1997.126.01.12 --- Alastair Beach, J. Lawson Brown, Paul J. Brockbank, Steven D. Knott, Jean E. McCallum, and Alastair I. Welbon: Fault seal analysis of SE Asian basins with examples from West Java / Geological Society, London, Special Publications, 126:185-194, doi:10.1144/GSL.SP.1997.126.01.13 --- D. J. Prosser and R. R. Carter: Permeability heterogeneity within the Jerudong Formation: an outcrop analogue for subsurface Miocene reservoirs in Brunei / Geological Society, London, Special Publications, 126:195-235, doi:10.1144/GSL.SP.1997.126.01.14 --- I. C. Mat-Zin and R. E. Swarbrick: The tectonic evolution and associated sedimentation history of Sarawak Basin, eastern Malaysia: a guide for future hydrocarbon exploration / Geological Society, London, Special Publications, 126:237-245, doi:10.1144/GSL.SP.1997.126.01.15 --- M. E. J. Wilson and D. W. J. Bosence: Platform-top and ramp deposits of the Tonasa Carbonate Platform, Sulawesi, Indonesia / Geological Society, London, Special Publications, 126:247-279, doi:10.1144/GSL.SP.1997.126.01.16 --- P. J. Boult: A review of the petroleum potential of Papua New Guinea with a focus on the eastern Papuan Basin and the Pale Sandstone as a potential reservoir fairway / Geological Society, London, Special Publications, 126:281-291, doi:10.1144/GSL.SP.1997.126.01.17 --- J. B. Blanche and J. D. Blanche: An overview of the hydrocarbon potential of the Spratly Islands archipelago and its implications for regional development / Geological Society, London, Special Publications, 126:293-310, doi:10.1144/GSL.SP.1997.126.01.18 --- Ian M. Longley: The tectonostratigraphic evolution of SE Asia / Geological Society, London, Special Publications, 126:311-339, doi:10.1144/GSL.SP.1997.126.01.19 --- D. Roques, S. J. Matthews, and C. Rangin: Constraints on strike-slip motion from seismic and gravity data along the Vietnam margin offshore Da Nang: implications for hydrocarbon prospectivity and opening of the East Vietnam Sea / Geological Society, London, Special Publications, 126:341-353, doi:10.1144/GSL.SP.1997.126.01.20 --- A. J. McCarthy and C. F. Elders: Cenozoic deformation in Sumatra: oblique subduction and the development of the Sumatran Fault System / Geological Society, London, Special Publications, 126:355-363, doi:10.1144/GSL.SP.1997.126.01.21 --- Chris Howells: Tertiary response to oblique subduction and indentation in Sumatra, Indonesia: new ideas for hydrocarbon exploration / Geological Society, London, Special Publications, 126:365-374, doi:10.1144/GSL.SP.1997.126.01.22 --- John L. C. Chambers and Timothy E. Daley: A tectonic model for the onshore Kutai Basin, East Kalimantan / Geological Society, London, Special Publications, 126:375-393, doi:10.1144/GSL.SP.1997.126.01.23 --- Steve J. Moss, John Chambers, Ian Cloke, Dharma Satria, Jason R. Ali, Simon Baker, John Milsom, and Andy Carter: New observations on the sedimentary and tectonic evolution of the Tertiary Kutai Basin, East Kalimantan / Geological Society, London, Special Publications, 126:395-416, doi:10.1144/GSL.SP.1997.126.01.24 --- John Milsom, Robert Holt, Dzazali Bin Ayub, and Ross Smail: Gravity anomalies and deep structural controls at the Sabah-Palawan margin, South China Sea / Geological Society, London, Special Publications, 126:417-427, doi:10.1144/GSL.SP.1997.126.01.25
    Pages: Online-Ressource (VI, 436 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 1897799918
    Language: English
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  • 2
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Calcsilicate xenoliths occur in large numbers in some lavas and pyroclastic flows of Lascar Volcano. Their whole-rock major element and REE compositions indicate that the protolith was the Upper Cretaceous Yacoraite Formation, which crops out extensively in NW Argentina. The whole-rock major element compositions of the xenoliths fall into specific groups suggesting a strong geochemical zonation in the skarn zone. Three geochemical zones have been identified; (1) an outer metamorphic zone rich in wollastonite; (2) a middle zone rich in pyroxene and garnet; (3) an inner zone rich in pyroxene and magnetite. The two innermost zones have developed from the wollastonite zone by infiltration of metasomatic fluids rich in Fe, Mn, Mg, Ti and Al. Whole-rock REE patterns have not changed significantly during prograde metamorphism and metasomatism, indicating REE immobility in the altering fluids. Retrograde alteration by acid-sulphate fluids produced anhydrite skarns and secondary calcite and wilkeite veins in the wollastonite zone. The carbon and oxygen isotopic compositions of this calcite indicate that it formed by Rayleigh crystallization from a low-temperature (〈200 °C) fluid containing dissolved H2CO3. The calculated δ18O of the water in this fluid suggests a magmatic origin whereas the calculated δ13C of the dissolved carbonate is consistent with derivation from rocks of the Yacoraite Formation at 350 °C. It is suggested that the magmatic acid-sulphate fluid was responsible for leaching carbonate from the surrounding carbonate rocks and redepositing it in the skarn zone. REEs were mobilized during the retrograde acid-sulphate and acid-carbonate alteration. A negative Ce anomaly associated with this carbonate and sulphate indicates high oxygen fugacities in the mineralizing fluids.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 7 (1988), S. 493-494 
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of volcanology 58 (1997), S. 557-565 
    ISSN: 1432-0819
    Keywords: Key words Pyroclastic flows ; Erosion ; Lascar ; Chile
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  Pyroclastic flows generated in the 19–20 April 1993 eruption of Lascar Volcano, Chile, produced spectacular erosion features. Scree and talus were stripped from the channels and steep slopes on the flanks of the volcano. Exposed bedrock and boulders suffered severe abrasion, producing smoothed surfaces on coarse breccias and striations and percussion marks on bedrock and large boulders. Erosional furrows developed with wavelengths of 0.5–2 m and depths of 0.1–0.3 m. Furrows commonly nucleated downstream of large boulders or blocks, which are striated on the upstream side, and thereby produced crag-and-tail structures. Erosive features were produced where flows accelerated through topographic restrictions or where they moved over steep slopes. The pyroclastic flows are inferred to have segregated during movement into lithic-rich and pumice-rich parts. Lithic-rich deposits occur on slopes up to 14°, whereas pumice-rich deposits occur only on slopes less than 4°, and mainly at the margins and distal parts of the 1993 fan. The lithic-rich deposits contain large (up to 1 m) lithic clasts eroded from the substrate and transported from the vent, whereas pumice-rich deposits contain only small (typically 〈2 cm) lithic clasts. These observations suggest that lithic clasts segregated to the base of the flows and were responsible for much of the erosive phenomena. The erosive features, distribution of lithic clasts and deposit morphology indicate that the 1993 flows were highly concentrated avalanches dominated by particle interactions. In some places the flows slid over the bedrock causing abrasion and long striations which imply that large blocks were locked in fixed positions for periods of about 1 s. However, shorter striae at different angles, impact marks, segregation of the deposits into pumice- and lithic-rich parts, and mixing of bedrock-derived lithic clasts throughout the deposits indicate that clasts often had some freedom of movement and that jostling of particles allowed internal mixing and density segregation to occur within the flows.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 23 (1988), S. 2064-2068 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A low chromium ferritic stainless steel (Type 405) with different heat treatments and weld configurations, has been investigated for susceptibility to intergranular corrosion by chemical and electrochemical potentiodynamic reactivation (EPR) tests, and the results were evaluated by weight losses, dye penetration, metallographic techniques, and the ratio of the reactivating and activating currents. Welds are susceptible to attack, particularly in the heat-affected zone. Applied stress in a U-bend increases significantly the attack on welds, and annealing eliminates the effects of stress. Results on the susceptibility of unwelded specimens in the form of flat plates and U-bends after various heat treatments are also presented and discussed.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 27 (1992), S. 3372-3378 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A siliconized silicon carbide composite has been microstructurally characterized, oxidized in air at 1350 °C for times up to 1079 h, air-cooled, and tested in four-point bending in the lapped condition at various temperatures up to 1425 °C, and in the pre-oxidized condition at room temperature and at 1300 °C. The strength of the lapped specimens increased by 25% at temperatures up to 1350 °C. Oxidation always decreased the strength of the material. After 315 h oxidation, the strength at room temperature and 1300°C was reduced by 50% and 40%, respectively. Preferential oxidation of the inter-grain regions formed pits up to 50 μm deep. Hot salt corrosion increased the amount of oxidation by nearly 800%, and formed pits about 100 μm deep. Microstructural details of the oxidation and fracture processes are presented, and the possible mechanisms of failure discussed.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 29 (1994), S. 1101-1108 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Cast aluminium-silicon, cast aluminium-zinc and mechanically alloyed aluminium alloys were eroded in distilled water using a 20 kHz ultrasonic vibratory device. The erosion was measured by weight loss, and the damaged surface was examined using metallographic and profilometric techniques. The maximum differences in the incubation period, in the linear erosion rate and in the mass loss after a 10 h exposure for the nine materials investigated were 620%, 740% and 250%, respectively. The mechanically alloyed materials had by far the best combination of erosion properties. The cast Al-Si alloys had the poorest resistance to erosion. Age hardening was particularly beneficial with the Al-Si alloy. The main mechanism of material removal in all the alloys is by plastic deformation and ductile fracture.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 43 (1992), S. 381-387 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Hastelloy alloy B-42 weld overlay weldingAlloy NiMo 28, Mat. No. 2.4617 (HASTELLOY alloy B-2), is known for its excellent corrosion resistance in hydrochloric and sulfuric acids over a wide range of concentrations and temperatures. Under critical conditions, however, severe corrosion can occur in welds (weld deposit and HAZ). This is attributed to molybdenum depletion of the microstructure.The properties of a filler material were investigated which contained an excessive amount of molybdenum over the parent alloy. This filler is called HASTELLOY alloy B-42, a nickel alloy having about 42% molybdenum. The much less ductile HASTELLOY alloy B-42 weld deposit is more corrosion resistant in hydrochloric and sulfuric acids than wrought HASTELLOY alloy B-2 and Hastelloyalloy B-2 filler. It can therefore be applied as weld overlay of HASTELLOY alloy B-2 welds subject to critical corrosion conditions. In field testing promising results were obtained. Currently only TIG rod having a diameter of not less than 4.76 mm (0.187“) are available which are causing handling problems. Tube wire with a diameter of 2.5 mm (0.098“) is under development and will be available shortly.
    Notes: Die Legierung NiMo 28, Werkst.-Nr. 2.4617 (Hastelloy alloy B-2) besitzt in weiten Konzentrations- und Temperaturbereichen eine hohe Korrosionsbeständigkeit in Salz- und Schwefelsäuren. Bei Grenzbeanspruchung sind Jedoch ernste Korrosionserscheinungen und Schweißverbindungen (Schweißgut, Wärmeeinflußzonen) zu beobachten; diese selektive Korrosion ist molybdänverarmten Gefügebereichen zuzuschreiben.Untersucht wurden die Eigenschaften eines an Molybdän überlegierten Schweißzusatzwerkstoffes: Hastelloy alloy B-42, einer Nickel-Legierung mit rd. 42% Molybdän. Das wenig duktile B-42-Schweißgut ist in Salz- und Schwefelsäure korrosionsbeständiger als der Knetwerkstoff Hastelloy alloy B-2 und dessen artgleiches Schweißgut; B-42 bietet sich zur Abdeckung korrosionsgefährdeter Schweißnähte in Hastelloy alloy B-2 an. Betriebliche Erprobungen verliefen erfolgversprechend. Derzeit steht nur ein schweißtechnisch schwierig zu handhabender gegossener WIG-Stab mit 4,76 mm Ø zur Verfügung; in Entwicklung befindet sich eine Fülldrahtelektrode mit 2,5 mm Ø, die in Kürze erhältlich ist.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 13 (1994), S. 170-173 
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 10
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Simulated Heat-Affected Zone Studies of Hastelloy B-2Gleeble studies show that as-welded HAZ corrosion resistance of a low carbon nickel-molybdenum alloy can be preserved by using gasshielded-arc or covered electrode welding. A heat-affected zone study was conducted on a low carbon, nickel-molybdenum, corrosion resistant alloy, commercially known as Hastelloy alloy B-2. Six different production heats were thermally cycled with the Gleeble apparatus to 1300 °C (2372 °F) under several conditions to simulate the heat-affected zones produced by a number of different welding processes. Specimens were subsequently tested in boiling 10% HCl and in 20% HCl at 150 °C (302 °F) in an autoclave.Most of the corrosion penetration measurements were found to be less than the maximum allowable limits, reaffirming that the as-welded heat-affected zone corrosion resistance of alloy B-2 can be preserved when welding is accomplished with the recommended shielded metal rec, gas tungsten arc, and gas metal arc processes.
    Notes: An einer korrosionsbeständigen Nickel-Molybdän-Legierung mit niedrigem Kohlenstoffgehalt, bekannt unter der Bezeichnung Hastelloy B-2Hastelloy ist ein eingetragener Handelsname der Cabot Corporation, wurde eine Untersuchung der Wärmeeinflußzone (WEZ) durchgeführt. Sechs verschiedene Produktionsschmelzen wurden im Gleeble-Schweißsimulator Temperaturzyklen bis 1300 °C unter verschiedenen Bedingungen unterworfen, um die Verhältnisse in der Wärmeeinflußzone, wie sie bei Anwendung verschiedener Schweißverfahren vorliegen, zu untersuchen. Die Proben wurden anschließend in 10%iger siedender Salzsäure und in 20%iger Salzsäure im Autoklaven bei 150 °C geprüft. Die Messung der Eindringtiefe ergab bei den meisten Proben Werte, die unterhalb der zulässigen Eindringtiefe liegen. Damit wird erneut bestätigt, daß die Korrosionsbeständigkeit von Hastelloy B-2 in der Wärmeeinflußzone im geschweißten, d. h. nicht wärmenachbehandelten Zustand gegeben ist, wenn die für das Verbindungsschweißen dieses Werkstoffs empfohlenen Schweißverfahren Metall-Lichtbogen-schweißen mit umhüllter Stabelektrode, Wolfram-Inertgas-Schweißen (WIG) und Metall-Inertgas-Schweißen (MIG) angewendet werden.
    Additional Material: 5 Ill.
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