The Division of Zhangjiakou Formation of Later Jurassic at Jibei

2013 ◽  
Vol 275-277 ◽  
pp. 1578-1584
Author(s):  
Ying Fu Chen ◽  
Gen Hou Wang ◽  
Qing Tao Meng

There is not a unified division scheme on the lithostratigraphic unit of Zhangjiakou formation from later Jurassic at jibei for a long time, so it makes the divisions more confusion, the establishment of the reasonable stratigraphic sequence and regional stratigraphic correlation has been effected. The Zhangjiakou formation is divided into three lithologic members in turn based on lithology combination of the phase sequence at Zhangjiakou by author through the project of “the study of jibei Mesozoic continental volcanic-sedimentary basin 1:250000 mapping method”. The first section mainly includes lithology combination of weak eruption phase sequence. The second section is main the lithology combination of explosive phase sequence; the third section mainly includes lithology combination of the eruption phase sequence. These three sections respectively represent the stage of the initial outbreak, the large-scale outbreak and a caldera collapse deposition. This division method can reflect volcanic tectonic features, establishing reasonable stratigraphic sequence, this contribute to the study of the history of the volcanic evolution. It can also combine the lithostratigraphic units division and volcanic-sedimentary organically.

1990 ◽  
Vol 5 ◽  
pp. 262-272
Author(s):  
William Miller

Paleontologists have lavished much time and energy on description and explanation of large-scale patterns in the fossil record (e.g., mass extinctions, histories of monophyletic taxa, deployment of major biogeographic units), while paying comparatively little attention to biologic patterns preserved only in local stratigraphic sequences. Interpretation of the large-scale patterns will always be seen as the chief justification for the science of paleontology, but solving problems framed by long time spans and large areas is rife with tenuous inference and patterns are prone to varied interpretation by different investigators using virtually the same data sets (as in the controversy over ultimate cause of the terminal Cretaceous extinctions). In other words, the large-scale patterns in the history of life are the true philosophical property of paleontology, but there will always be serious problems in attempting to resolve processes that transpired over millions to hundreds-of-millions of years and encompassed vast areas of seafloor or landscape. By contrast, less spectacular and more commonplace changes in local habitats (often related to larger-scale events and cycles) and attendant biologic responses are closer to our direct experience of the living world and should be easier to interpret unequivocally. These small-scale responses are reflected in the fossil record at the scale of local outcrops.


2010 ◽  
Vol 365 (1542) ◽  
pp. 869-881 ◽  
Author(s):  
Anders Brodin

In this review, I will present an overview of the development of the field of scatter hoarding studies. Scatter hoarding is a conspicuous behaviour and it has been observed by humans for a long time. Apart from an exceptional experimental study already published in 1720, it started with observational field studies of scatter hoarding birds in the 1940s. Driven by a general interest in birds, several ornithologists made large-scale studies of hoarding behaviour in species such as nutcrackers and boreal titmice. Scatter hoarding birds seem to remember caching locations accurately, and it was shown in the 1960s that successful retrieval is dependent on a specific part of the brain, the hippocampus. The study of scatter hoarding, spatial memory and the hippocampus has since then developed into a study system for evolutionary studies of spatial memory. In 1978, a game theoretical paper started the era of modern studies by establishing that a recovery advantage is necessary for individual hoarders for the evolution of a hoarding strategy. The same year, a combined theoretical and empirical study on scatter hoarding squirrels investigated how caches should be spaced out in order to minimize cache loss, a phenomenon sometimes called optimal cache density theory. Since then, the scatter hoarding paradigm has branched into a number of different fields: (i) theoretical and empirical studies of the evolution of hoarding, (ii) field studies with modern sampling methods, (iii) studies of the precise nature of the caching memory, (iv) a variety of studies of caching memory and its relationship to the hippocampus. Scatter hoarding has also been the subject of studies of (v) coevolution between scatter hoarding animals and the plants that are dispersed by these.


2021 ◽  
pp. 181-200
Author(s):  
Charles W. Rovey ◽  
Damon J. Bassett ◽  
Matthew P. McKay

ABSTRACT A succession of Ordovician and Mississippian carbonates, separated unconformably, is exposed across the southern flank of the Ozark Dome in southwest Missouri. Deposits of both periods exemplify typical facies of the Midwestern United States: carbonate tidal-flat assemblages for the Early Ordovician and carbonate shelf environments for the Early–Middle Mississippian. The basic stratigraphic sequence of these deposits has been known for over a century, but interesting features remain to be addressed. Thin discontinuous sandstones are present within the Early Ordovician Cotter Dolomite, but the informal Swan Creek sandstone member seems anomalous. This sandstone can exceed 5 m in thickness and is fairly continuous across southwest Missouri. Most Ordovician sandstones in Missouri mark major transgressions above regional unconformities, but not the Swan Creek, and there is no obvious source of the sand. Therefore, we hypothesize that the Swan Creek represents reworked eolian dunes blown across the broad peritidal environment. Clastic sandstone dikes, apparently sourced from the Swan Creek, cut across beds of Cotter Dolomite near faults. We propose that these dikes are evidence of local faulting and seismicity during the Early Ordovician. Early and Middle Mississippian limestones comprise a sequence of shelf deposits, although mud mounds and other facies changes near the Missouri-Arkansas line mark the edge of the Mississippian shelf and the transition to a ramp setting. Early Mississippian carbonate deposition was interrupted by a short and localized influx of siliciclastic sediment comprising the Northview Formation. The Northview has additional characteristics consistent with a river-dominated deltaic deposit, which we suggest as its origin. If correct, this hypothesis implies that the history of tectonic features in the Midwest is more complicated than yet known. Finally, facies changes within and between the local Mississippian formations may record an early crustal response to the impending Ouachita orogeny farther to the south.


Radiocarbon ◽  
2005 ◽  
Vol 47 (1) ◽  
pp. 147-158 ◽  
Author(s):  
Andrea Manzo

The South Arabian chronology has been problematic for a long time and this is also a true vexata quaestio for the ancient history of South Arabia. Three different chronologies have been suggested for the first literate phase of South Arabian cultures, which may date to the 11th century BC, the late 8th century BC, or the 5th century BC (see de Maigret 1996:157–63; de Maigret and Robin 1989: 276–8; Pirenne 1988; Robin 1997; Figure 1). At the site of Yalâ, potsherds with incised South Arabian inscriptions have been recovered in a stratum dating at least to the 8th century BC, if not earlier, and offer evidence of the existence of South Arabian culture at that time (de Maigret and Robin 1989:288–9).


2019 ◽  
Vol 3 (04) ◽  
pp. 345-362
Author(s):  
Deby Sinantya Purbodewi ; Rahadian P. Herwindo

Abstract- Keraton Kasepuhan Cirebon is one of the oldest palace that built during the transition era of Hindu Buddhism and Islam. Therefore. Keraton Kasepuhan has many periods of cultural period, where each period of time has its own distinctive culture, especially from special activities and daily activities that can affect the needs that create a spatial pattern. In terms of architecture, the existence of cultural influences resulted in the development of spatial and mass patterns, so that Kasepuhan Palace has elements of the culture in the spatial pattern and mass. According to the results of previous research, the culture is: Hindu-Buddhist, Islam, and also Colonial.  Using linear analytical methods, the data were analyzed by discussing according to the history of spatial development from the influence of each culture. The data were analyzed based on the composition of the HinduBuddhist, Islamic, Chinese, and Colonial spatial layout with the spatial development in the history of the Kasepuhan Palace, which was divided into four ages of leadership namely Ketemenggungan, Kesunanan, Panembahan and Kasultanan, in the focus of large-scale contexts, sacred building contexts, residential buildings.  This study aims to tell the architectural pattern that form Keraton Kasepuhan. The benefits of the completion of this research are to add to the architectural treasury of spatial and mass principles by various cultures in Indonesia, and add insight into the principles of spatial and mass arrangement based on theory and culture.  The conclusion of this research is the development of spatial and mass on Keraton Kasepuhan is most influenced by local culture, Hindu and Javanese Islam, while the outside culture does not much influence especially on spatial and mass Keraton Kasepuhan. In this case also found that the spatial and mass of a building can survive in a long time, while the form elements in the building can whenever changed and can be adopted or inspired from any culture. Spatial and mass is very crucial, it is the key to the relationship of architecture with humans.  Key Words: Acculturation, Spatial and Mass, History, Keraton, Keraton Kasepuhan Cirebon


2019 ◽  
Vol 7 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Eleni-Anna Prevedorou ◽  
Jane E. Buikstra

ABSTRACTHuman skeletal remains constitute remarkably informative finds, both biologically and socioculturally. Their recovery, preservation, conservation, storage, and analysis are complex issues that need to be addressed within any given biocultural context. Given the country's geography and the long history of human occupation, Greek field archaeology is intense and ongoing, with both rescue and systematic excavations. Human burials are thus frequently encountered in excavations throughout Greece, resulting in the accumulation of osteological material. Some of the common challenges of bioarchaeological research in Greece consist of insufficient time, funding, and documentation in the field; unmet conservation needs and lack of storage space; as well as the long time-gap between excavation and analysis. Here, we give a brief overview of excavation, curation, and bioarchaeological practice within a Greek archaeological framework. We focus on the newly launched Phaleron Bioarchaeological Project on a vast necropolis from the wider Athens region in order to present our methodological approach. Finally, we consider the role of interdisciplinary collaboration in managing large-scale bioarchaeological projects and serving long-term heritage preservation goals.


Author(s):  
Vladimir V. Kanishchev

We consider one of the most difficult periods of the First World War for the Russian army – the “Great Retreat” of 1915. The behavior of the officer corps and soldiers of four regiments of the 7th Infantry Division of the Imperial Army in the conditions of a large-scale retreat in June–September 1915 is studied. In the course of the study, it is found that the events of those days are covered in regimental records very subjectively. Their compilers entered data with varying degrees of completeness and accuracy, and sometimes left serious gaps in the chronology of events. Nevertheless, the obtained facts allowed us to draw ambiguous conclusions about this event in our history. There is a place for the manifestation of all the human traits that can be revealed in war. Soldiers and officers, finding themselves in different situations, could show courage and bravery, cowardice and weakness, determination and uncertainty. However, the general description of what is happening convinces us that the people who found themselves in these conditions remained faithful to the oath and fulfilled the tasks assigned to them. The Great retreat “did not bury” the Russian imperial army, which continued the struggle and only the circumstances that occurred within the state in two years will put an end to the history of its existence.


2013 ◽  
Vol 652-654 ◽  
pp. 2520-2523
Author(s):  
Ying Hua Yu ◽  
Dan Dan Yuan ◽  
Xiang Li Zhong

The geological structures of Zaobei area are broken seriously, because of the whole region was divided many blocks by many faults, which could bring huge difficulty to stratigraphic correlation. The high resolution sequence stratigraphy on Zao IV group in Zaobei oilfield was studied by using core data, logging and 3D seismic data. Features of sequence boundary in all available data were identified, and the characteristics of different levels of cycles were analyzed. Zao IV group in target zone was divided into one long-term base-level cycles, seven mid-term base-level cycles and twenty one short-term base-level cycles Based on the integrated research of core data description in single well logging data Correlation in wells and large scale horizontal Correlation Constrained by 3D scismic data, the high resolution sequence frame of Zao IV group is established, it provides important basis for future reservoir prediction and description.


Author(s):  
Linn Holmberg

AbstractFor a long time, histories of the rise of the modern encyclopedia were mainly histories of publications: chronologies of large-scale, alphabetically organized reference works, successfully completed in one country after another, from the late 1600s onwards. Since none of the Scandinavian countries managed to publish general encyclopedias in the eighteenth century, researchers assumed that encyclopedic practice “reached” the northern periphery at a later date. However, the geographical expansion of a literary practice and the history of its most successful, printed outcomes do not necessarily share the same milestones. In this chapter, Linn Holmberg explores a number of stranded encyclopedias in eighteenth-century Sweden, detected partly through the periodical press, partly through archival research. The first part examines glimpses of encyclopedic projects seen through the journal Lärda tidningar (1745–1773). The second part reconstructs the encyclopedic efforts of two officials of the Swedish Bureau of Mines, who worked on an encyclopedia of mining and metallurgy for almost forty years (c. 1743–1787). By examining the motivations and circumstances underpinning the initiation, abandonment, and transformations of these projects, the study aspires to produce new insights into the early formation of alphabetical encyclopedic practice in eighteenth-century Sweden.


1996 ◽  
pp. 4-15
Author(s):  
S. Golovaschenko ◽  
Petro Kosuha

The report is based on the first results of the study "The History of the Evangelical Christians-Baptists in Ukraine", carried out in 1994-1996 by the joint efforts of the Department of Religious Studies at the Institute of Philosophy of the National Academy of Sciences of Ukraine and the Odessa Theological Seminary of Evangelical Christian Baptists. A large-scale description and research of archival sources on the history of evangelical movements in our country gave the first experience of fruitful cooperation between secular and church researchers.


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