The Xiongnu Empire (c. 200 BC – AD 100) was the first instance of imperial level organization by nomadic groups of the Mongolian steppe. Over a century of historical and archaeological research has produced a large body of scholarship on the political, military, and sociocultural structures of Xiongnu society. This study adds to the growing body of recent bioarchaeological research by using multiple lines of evidence to address the impacts of empire formation on the physical health of those who lived under the influence of Xiongnu rule. Models of Xiongnu empire formation posit stable access to Chinese agricultural goods and reduction in violent conflict as major motivating factors in establishing imperial-level organization among Mongolian nomadic groups. By gathering data from the skeletal remains of 349 individuals from 27 archaeological sites and analyzing the frequency of 10 dietary and health indicators, this study addresses these claims. The Xiongnu imperial expansion and administration resulted in the movement and/or displacement of nomadic groups, consequences that are documented in Chinese historical texts, but its impact on population structure is poorly understood. Craniometric data collected from this skeletal sample were used to conduct a model-bound biological distance analysis and fit to an unbiased relationship matrix to determine the amount of intra- and inter-group variation, and estimate the biological distance between different geographic and temporal groups. This skeletal sample includes individuals from 19 Xiongnu-period sites located across the region under Xiongnu imperial control. Individuals from eight Bronze Age sites in Mongolia were included to establish pre-Xiongnu health status. One agricultural site within the Han empire, contemporaneous with the Xiongnu, was included for comparison. The results of this study indicate that Xiongnu motivations for creating a nomadic empire were considerably more complex than current models suggest. Although historical texts document that the Xiongnu received agricultural products as tribute from China, dietary markers indicate the Xiongnu diet was more similar to that of their Bronze Age predecessors than to their agricultural Han neighbors. The movement of people across the Mongolian steppe during the Xiongnu period created a more phenotypically homogeneous population structure than that of previous Bronze Age groups.

The thesis examines the history of the MPR between 1924 and 1928, establishes a chronology of events and identifies the personalities involved. It describes the creation of political structures after Soviet models; the transfer of the Mongolian economy from the Chinese to the Soviet system; the growth of secular education; and the attempt to subject the organization and economic power of the Buddhist church to state control. These developments were strongly influenced by the Mongols' desire to remain independent of China and to assume the form and characteristics of powerful nation-states. However the heavy demands of allegiance to the USSR and the Comintern distorted native aspirations and compelled Mongols to give up ideas of Pan-Mongolism, Buddhist reform and an independent foreign policy. Until the end of 1926 modernization and the integration of the MPR into the Soviet system was gradual but from 1927 the Comintern ordered stricter measures of class discrimination, harsher religious policies and a more rapid construction of state capitalism. Some Mongolian leaders believed the demands unsuitable to Mongolian conditions. The Comintern fomented differences among the leadership and in 1928 most former MPRP leaders were ousted on the charge of Right Deviation. The USSR's deteriorating foreign relationships and Stalin's plan for the rapid industrialization of the USSR were root causes of this development. Unquestioning loyalty of the MPR to the USSR was required for strategic reasons. Cooperative and state forms of capitalism would facilitate the transfer of more Mongolian products to the Siberian industries. The thesis draws the conclusion that the MPRP submitted to Comintern demands in 1928 through conviction, coercion and because there was no alternative ally prepared to guarantee Mongolian independence. It also points to the experience of the MPR as a suitable development model for nomadic, pre-industrial societies. The MPR may also be compared with other states traditionally linked with China but now closely associated with the USSR.

No / An analysis of the geopolitics of Mongolia between the Great Powers of the Asia-Pacific.

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Thesis (M.A. in International Security and Civil-Military Relations) Naval Postgraduate School, March 2000. / Thesis advisor(s): Stockton, Paul N. "March 2000." Includes bibliographical references (p. 63-68). Also available in print.

No description available.

The Central Asian Orogenic Belt formed by accretion subsequent to the contraction of the Palaeo-Asian Ocean that ultimately disappeared along the Solonker Suture Zone in East Asia. Since typical regional collisional features are absent, the tectonic evolution of the suture remains speculative. Integrated sedimentary provenance analyses across the accretionary collision zone between the Mongolian Arcs and the North China Craton place new constraints on the events that led to final suturing. An investigation on the geochronological and geochemical variability in Permian strata along a southeast-northwest transect revealed distinct differences across the Solonker Suture Zone: northern basins carry a broad Mesoproterozoic to latest Precambrian age signature, and their provenance terranes are of mixed juvenile to crustal magmatic origin. In contrast, southern basins contain detritus from the North China Craton, and their sources are of dominantly crustal contaminated magmatic origin. Provenance analysis suggests, that in the Early Palaeozoic (ca. 429 Ma) the Palaeo-Asian Ocean was consumed along the Uliastai Arc and the North China Craton, initiating the formation of the Northern and Southern Accretionary Orogens, respectively. By the end of the Middle Carboniferous the Mongolian Arcs consolidated after accretion of the Uliastai Arc. In the Late Carboniferous (ca. 314 Ma) the Hegenshan back-arc basin opened, detaching the Northern Accretionary Orogen. While subduction continued there, it may have temporarily ceased along the Southern Accretionary Orogen after accretion of a microcontinent (ca. 300 Ma). During the Middle Permian back-arc basin closure led to the formation and obduction of the Hegenshan supra-subduction zone ophiolite. Eventually, the Palaeo-Asian Ocean closed after wedge-wedge collision, which would not involve continental deep subduction, thus, leading to cryptic suturing from the Late Permian to Early Triassic. Statistical analyses on the heterogeneity and similarity of the age probability density functions require a complex Permian palaeo-geographic setting, involving a variety of arc basins, which received sediments dependent on the contemporary arc geometry. Early stages of the sequence likely resembled a Pacific-type scenario, including Japan-type back-arc basin opening, whereas the late stages were similar to the archipelago-type setting of present-day Southeast Asia. / published_or_final_version / Earth Sciences / Doctoral / Doctor of Philosophy

本論文是關於外蒙古自1986年至1993年之間進行的經濟改革之研究，其主要目的為探討，外蒙古之所以採取改革開放政策的國內外因素、改革開放的過程與內容、進行改革開放所帶來的成果以及限制。本研究各章的安排簡述如下： 第一章：揭示研究目的、方法與範圍，並介紹資料來源與限制。 第二章：詳述改革以前外蒙古經濟之情況，探討改革以前外蒙古的經濟政策、體系以及對外貿易。 第三章：分為經濟改革之國內因素與經濟改革之國外因素兩個方面，來分析外蒙古之所以進行經濟改革的原因。 第四章：分析外蒙古經濟改革之演變過程以及具體內容。 第五章：分析外蒙古經濟改革所帶來的成果與所面臨的限制。 第六章：結論部份。歸納以上所探討的內容來提出外蒙古要達成經濟改革的此一目標所需要進行的設計以及規劃。

The super-giant Oyu Tolgoi porphyry copper-gold deposits in the South Gobi desert, Mongolia, consist of multiple discrete porphyry centers aligned within a north-northeast trending, >6.5 km long, arc-transverse mineralized corridor. The porphyries are linked to a tectono-magmatic event at ~372 Ma within a Devonian to Carboniferous volcanic arc, and U-Pb (zircon) geochronology records magmatic activity from ~390 Ma to ~320 Ma. The Oyu Tolgoi district underwent at least three discrete periods of syn- to post-mineral shortening and there is evidence for at least three unconformities within the Paleozoic sequence. Although the deposits were formed in an active orogenic environment characterized by rapid uplift, their preservation is a reflection of climactic effects as well insulation from erosion by rapid burial under mass-wasted and pyroclastic material in the volcaniclastic apron of late-mineral dacitic volcanoes. The porphyry copper-gold deposits are spatially and temporally related to medium- to high-K calc-alkaline quartz monzodiorite (~372 Ma) and granodiorite (~366 Ma) intrusive phases that comprise the Late Devonian Oyu Tolgoi Igneous Complex (OTIC). Adakite-like wholerock compositions as well as zircon grains with high CeN/CeN*, EuN/EuN* and Yb/Gd in the sample populations from syn- and late-mineral porphyry intrusions are different from younger intrusions that are not related to porphyry Cu-Au deposit formation. Moreover, mixed zircon populations within OTIC intrusions indicate that efficient assimilation of material from different host rocks by a convecting magma chamber occurred. Mafic to intermediate volcanic units evolved from tholeiitic to calc-alkaline compositions, which is interpreted to be a reflection of marine arc maturation and thickening. Felsic rock suites are dominantly high-K calc-alkaline, regardless of age. Nd-isotopic geochemistry from all suites is consistent with magma derivation from depleted mantle in an intra-oceanic volcanic arc and lead isotopic compositions indicate that the sulfides in the porphyry Cu-Au deposits are genetically linked to the Late Devonian magmas. Magma mixing, adakite-like magmatism and rapid uplift and erosion in a juvenile marine arc setting differentiate the ore-stage geologic environment at Oyu Tolgoi from other settings in active and fossil volcanic arcs.