scholarly journals Protolith-Related Thermal Controls on the Decoupling of Sn and W in Sn-W Metallogenic Provinces: Insights from the Nanling Region, China

2019 ◽  
Vol 114 (5) ◽  
pp. 1005-1012 ◽  
Author(s):  
Shunda Yuan ◽  
Anthony E. Williams-Jones ◽  
Rolf L. Romer ◽  
Panlao Zhao ◽  
Jingwen Mao
Keyword(s):  
South China ◽  
Bulk Rock ◽  
Rare Metals ◽  
The West ◽  
Metallogenic Province ◽  
Peraluminous Granites ◽  
Microgranular Enclaves ◽  
Mafic Microgranular Enclaves ◽  
The World ◽  
Zircon Saturation

Abstract The Nanling region of South China hosts the largest W-Sn metallogenic province in the world, accounting for more than 54% of global tungsten resources as well as important resources of tin and rare metals. An important feature of this province, which is shared by a number of other W-Sn metallogenic provinces, is that W deposits occur separately from Sn and Sn-W deposits, with the latter concentrated in the western part of the region (especially along the deep, NE-trending Chenzhou-Linwu fault) and the W deposits to the east of them. All the deposits are associated with ilmenite series, peraluminous granites. However, the granites associated with the Sn and Sn-W deposits can be distinguished from the W granites by their higher bulk-rock εNd values and their higher zircon εHf values. Most importantly, the Sn and Sn-W granites are characterized by higher zircon saturation temperatures (800 ± 20°C) than the W granites (650°–750°C). The Sn and Sn-W granites also contain abundant mantle-derived mafic microgranular enclaves, whereas such enclaves are rare in the W granites. A model is proposed in which the protolith to the W granites released W to the melt as a result of the breakdown of muscovite. The temperature of melting, however, was too low for biotite to melt. In the west, particularly along the Chenzhou-Linwu fault (the location of the Sn and Sn-W deposits), higher temperatures enabled the breakdown of both muscovite and biotite and the consequent release of both Sn and W to form Sn and Sn-W granites. This model, which is based on differences in the protolith melting temperature and thus mobilization temperatures for Sn and W, is potentially applicable to any Sn-W metallogenic province in which the Sn and Sn-W deposits are spatially separated from the W deposits.

Taiwan, Hong Kong, and the Pacific, 1895–1945

2009 ◽  
Vol 44 (5) ◽  
pp. 1053-1080
Author(s):  
MAN-HOUNG LIN
Keyword(s):  
Hong Kong ◽  
South China ◽  
Panama Canal ◽  
The West ◽  
Westward Expansion ◽  
Economic Relationships ◽  
Shipping Point ◽  
The Pacific ◽  
The World ◽  
The Pacific Ocean

AbstractFor the history connecting East Asia with the West, there is much literature about contact and trade across the Atlantic Ocean from the sixteenth to the early nineteenth centuries.1 This paper notes the rapid growth of the Pacific Ocean in linking Asia with the larger world in the early twentieth century by perceiving the economic relationships between Taiwan and Hong Kong while Japan colonized Taiwan. The Pacific route from Taiwan directly to America or through Japan largely replaced the Hong Kong–Atlantic–Europe–USA route to move Taiwan's export products to countries in the West. Other than still using Hong Kong as a trans-shipping point to connect with the world, Japan utilized Taiwan as a trans-shipping point to sell Japanese products to South China, and Taiwan's tea was sold directly to Southeast Asia rather than going through Hong Kong. Taiwan's exports to Japan took the place of its exports to China. Japanese and American goods dominated over European goods or Chinese goods from Hong Kong for Taiwan's import. Japanese and Taiwanese merchants (including some anti-Japanese merchants) overrode the British and Chinese merchants in Hong Kong to carry on the Taiwan–Hong Kong trade. America's westward expansion towards the Pacific, the rise of the Pacific shipping marked by the opening of the Panama Canal in 1914, and the rise of Japan relative to China, restructured intra-Asian relations and those between Asia and the rest of the world.

Ferromagnesian silicate association in S-type granites: the Darongshan granitic complex (Guangxi, South China)

2008 ◽  
Vol 179 (1) ◽  
pp. 13-27 ◽  
Author(s):  
Bernard Charoy ◽  
Pierre Barbey
Keyword(s):  
South China ◽  
Granulite Facies ◽  
Coarse Grained ◽  
Magma Ascent ◽  
Granulite Facies Metamorphism ◽  
Rock Types ◽  
Microgranular Enclaves ◽  
Mafic Microgranular Enclaves ◽  
Type Granite ◽  
Granite Complex

Abstract The late Indosinian Darongshan granite complex (Guangxi Province, South China) consists mainly of three plutons (Taima, Jiuzhou and Darongshan), with coarse-grained to subvolcanic rock types. There is a rough mineral evolution from the western to the eastern part of the complex, with ferromagnesian magmatic silicates sequentially distributed : Opx+Crd±Bt (Taima), Opx+Grt+Bt+Crd (Jiuzhou) and Bt+Crd (Darongshan). Restitic, cumulative or xenocrystic minerals (mainly Crd with fibrolite+spinel inclusions, Grt and probably Opx in some cases) are also encountered. Mineralogical, chemical and isotopic compositions of the granites suggest that the three plutons derive from a source dominated by a reduced, immature greywacke-psammite series, which has experienced high-amphibolite to granulite-facies metamorphism. This S-type granite complex is considered to result from various degrees of melting at different crustal levels by biotite dehydration-melting in a high T (800° to 950°C), low P (400–600 MPa) metamorphic environment. Abundant granulite-facies metasedimentary enclaves with refractory compositions are considered as xenoliths entrapped during magma ascent. The presence of scarce mafic microgranular enclaves and the high temperatures needed for melting could suggest that heat may have been partly contributed by mantle-derived magmas.

Prevalence of Suicidal Ideation in Sri Lanka

Crisis ◽  
2010 ◽  
Vol 31 (1) ◽  
pp. 30-35 ◽  
Author(s):  
Sudath Samaraweera ◽  
Athula Sumathipala ◽  
Sisira Siribaddana ◽  
S. Sivayogan ◽  
Dinesh Bhugra
Keyword(s):  
Suicidal Ideation ◽  
Sri Lanka ◽  
General Population ◽  
Suicide Attempts ◽  
National Average ◽  
The West ◽  
Suicide Methods ◽  
Suicide Rates ◽  
Completed Suicide ◽  
The World

Background: Suicidal ideation can often lead to suicide attempts and completed suicide. Studies have shown that Sri Lanka has one of the highest rates of suicide in the world but so far no studies have looked at prevalence of suicidal ideation in a general population in Sri Lanka. Aims: We wanted to determine the prevalence of suicidal ideation by randomly selecting six Divisional Secretariats (Dss) out of 17 in one district. This district is known to have higher than national average rates of suicide. Methods: 808 participants were interviewed using Sinhala versions of GHQ-30 and Beck’s Scale for Suicidal Ideation. Of these, 387 (48%) were males, and 421 (52%) were female. Results: On Beck’s Scale for Suicidal Ideation, 29 individuals (4%) had active suicidal ideation and 23 (3%) had passive suicidal ideation. The active suicidal ideators were young, physically ill and had higher levels of helplessness and hopelessness. Conclusions: The prevalence of suicidal ideation in Sri Lanka is lower than reported from the West and yet suicide rates are higher. Further work must explore cultural and religious factors.

Psychology from Egyptian, Arab, and Islamic Perspectives

1997 ◽  
Vol 2 (4) ◽  
pp. 356-365 ◽  
Author(s):  
Fouad A-L.H. Abou-Hatab
Keyword(s):  
Professional Identity ◽  
21St Century ◽  
The West ◽  
Islamic Perspective ◽  
National Heritage ◽  
Western Psychology ◽  
The World ◽  
The One

This paper presents the case of psychology from a perspective not widely recognized by the West, namely, the Egyptian, Arab, and Islamic perspective. It discusses the introduction and development of psychology in this part of the world. Whenever such efforts are evaluated, six problems become apparent: (1) the one-way interaction with Western psychology; (2) the intellectual dependency; (3) the remote relationship with national heritage; (4) its irrelevance to cultural and social realities; (5) the inhibition of creativity; and (6) the loss of professional identity. Nevertheless, some major achievements are emphasized, and a four-facet look into the 21st century is proposed.

Searching for new Sources of growth. Are the Developing Countries Catching up with the Developed ones?

2015 ◽  
pp. 30-53
Author(s):  
V. Popov
Keyword(s):  
Developing Countries ◽  
Western Europe ◽  
Gdp Per Capita ◽  
The West ◽  
Catching Up ◽  
The Us ◽  
The World ◽  
Economic Divergence ◽  
Per Capita ◽  
Relative Standing

This paper examines the trajectory of growth in the Global South. Before the 1500s all countries were roughly at the same level of development, but from the 1500s Western countries started to grow faster than the rest of the world and PPP GDP per capita by 1950 in the US, the richest Western nation, was nearly 5 times higher than the world average and 2 times higher than in Western Europe. Since 1950 this ratio stabilized - not only Western Europe and Japan improved their relative standing in per capita income versus the US, but also East Asia, South Asia and some developing countries in other regions started to bridge the gap with the West. After nearly half of the millennium of growing economic divergence, the world seems to have entered the era of convergence. The factors behind these trends are analyzed; implications for the future and possible scenarios are considered.

Comparing Comparisons: Political Implications of Different Notions of Difference

2016 ◽  
Vol 13 (1) ◽  
pp. 7-26
Author(s):  
Glenn Odom
Keyword(s):  
Cultural Studies ◽  
World Literature ◽  
The West ◽  
Political Debates ◽  
Political Implications ◽  
The World ◽  
Critical Attention ◽  
David Damrosch ◽  
Location Point

With the rise of the American world literature movement, questions surrounding the politics of comparative practice have become an object of critical attention. Taking China, Japan and the West as examples, the substantially different ideas of what comparison ought to do – as exhibited in comparative literary and cultural studies in each location – point to three distinct notions of the possible interactions between a given nation and the rest of the world. These contrasting ideas can be used to reread political debates over concrete juridical matters, thereby highlighting possible resolutions. This work follows the calls of Ming Xie and David Damrosch for a contextualization of different comparative practices around the globe.

Squatting: The Fight for Decent Shelter, 1970s–1980s

2018 ◽  
Vol 11 (1) ◽  
pp. 27-50
Author(s):  
John Marsland
Keyword(s):  
Welfare State ◽  
Public Services ◽  
Second World War ◽  
World War ◽  
Housing Policies ◽  
The West ◽  
The World ◽  
Housing Needs ◽  
Post War ◽  
Second World

During the twenty years after the Second World War, housing began to be seen as a basic right among many in the west, and the British welfare state included many policies and provisions to provide decent shelter for its citizens. This article focuses on the period circa 1968–85, because this was a time in England when the lack of affordable, secure-tenured housing reached a crisis level at the same time that central and local governmental housing policies received wider scrutiny for their ineffectiveness. My argument is that despite post-war laws and rhetoric, many Britons lived through a housing disaster and for many the most rational way they could solve their housing needs was to exploit loopholes in the law (as well as to break them out right). While the main focus of the article is on young British squatters, there is scope for transnational comparison. Squatters in other parts of the world looked to their example to address the housing needs in their own countries, especially as privatization of public services spread globally in the 1980s and 1990s. Dutch, Spanish, German and American squatters were involved in a symbiotic exchange of ideas and sometimes people with the British squatters and each other, and practices and rhetoric from one place were quickly adopted or rejected based on the success or failure in each place.

Slavery and the Trumpocene: It's Not the End of the World

2019 ◽  
Vol 41 (1) ◽  
pp. 40-50
Author(s):  
Claire Colebrook
Keyword(s):  
Living System ◽  
Racial Violence ◽  
First Century ◽  
The West ◽  
The Earth ◽  
The World ◽  
End Of The World ◽  
Twenty First Century ◽  
Geological Period

There is something more catastrophic than the end of the world, especially when ‘world’ is understood as the horizon of meaning and expectation that has composed the West. If the Anthropocene is the geological period marking the point at which the earth as a living system has been altered by ‘anthropos,’ the Trumpocene marks the twenty-first-century recognition that the destruction of the planet has occurred by way of racial violence, slavery and annihilation. Rather than saving the world, recognizing the Trumpocene demands that we think about destroying the barbarism that has marked the earth.

A4. UNRWA, IMPACT OF THE FIRST PHASE OF THE SECURITY BARRIER ON THE QALQILYA, TULKARM, AND JENIN DISTRICTS, GAZA CITY, JULY 2003 (EXCERPTS).

2003 ◽  
Vol 33 (1) ◽  
pp. 153-160
Keyword(s):  
Civil Engineering ◽  
West Bank ◽  
The West ◽  
Full Report ◽  
The World ◽  
Aid Coordination ◽  
President Bush ◽  
Engineering Projects ◽  
The U.S

The separation wall, one of the largest civil engineering projects in Israel's history, has been criticized even by the U.S. administration, with Condoleezza Rice stating at the end of June 2003 that it ““arouses our [U.S.] deep concern”” and President Bush on 25 July calling it ““a problem”” and noting that ““it is very difficult to develop confidence between the Palestinians and Israel with a wall snaking through the West Bank.”” A number of reports have already been issued concerning the wall, including reports by B'Tselem (available at www.btselem.org), the UN Office for the Coordination of Humanitarian Affairs (available at www.palestinianaid.info), and the World Bank's Local Aid Coordination Committee (LACC; also available at www.palestinianaid.info). UNRWA's report focuses on the segment of the wall already completed and is based on field visits to the areas affected by the barriers, with a special emphasis on localities with registered refugees. Notes have been omitted due to space constraints. The full report is available online at www.un.org/unrwa.

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