排序方式： 共有2条查询结果，搜索用时 15 毫秒
1
1.
This paper focuses on the Sub–Carpathian region which has traditionally maintained a large rural population and is today suffering
acute economic and social stress. During the present transition phase the rural population is struggling to survive by combining
elements of the modern and traditional economies and research has been undertaken to clarify a range of household strategies.
After profiling the communes of the Buzau Carpathians the problem is tackled at two levels on the basis of questionnaire work
carried out during 1998–1999. First there is a general overview to outline conditions in Patarlagele commune, including some
local contrasts between settlements on main transport axis along the Buzau valley and those in the hills and side valleys.
Second there is a consideration of in-depth profiles of specific households in villages in the wider area including Panatau
as well as Patarlagele commune. It remains to be seen to what extent the district will be able to safeguard its social capital
when growth resumes in large towns especially Brasov and Buzau with which Patarlagele has the best contacts. It is also an
open question how far the remoter settlements will retain a viable population, assuming that the services remain relatively
poor while disadvantage persists with regard to both employment opportunities and physical security.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
2.
Veselina B. Butchvarova 《Studia Geophysica et Geodaetica》1991,35(4):285-294
Summary The piston core with a length of 60·8 m from the Samotino-east structure of the Bulgarian Black Sea shelf (about 28·2 E, 42·8 N) is studied palaeomagnetically. 129 levels from the interval 2·5–60·2 m, generally represented by clays and aleurolitic muds, were sampled. The age of the sediments of this core was determined by correlation with another core, situated very close to the one concerned (3 km), whose fauna is known very well. Its age is Eopleistocene (Gurinian deposits), Upper Pleistocene (Neweuxinian deposits) and Holocene.Standard palaeomagnetic methods are used to determine the components of NRM and the main carriers of primary magnetization (AF and thermal demagnetization of NRM, thermodemagnetization of Jrs and Js).It is assumed that the basic carrier of NRM is coarse-grained ferrimagnetic monoclinic pyrrhotite (TB of 300 °C) or partly oxidized pyrite (TB of 400 °C).It is shown that the pyrite concentration varies along the depth of the section. This palaeomagnetically established variation corresponds very well to the data on the transgressive and regressive phases in the Black Sea basin. For the Gurinian deposits these phases are connected with the Danube and Güns glacials, the D-G interglacial and G1-G2 interstadial. No such correlation has so far been mentioned in the literature to our knowledge.Presented at 2nd conference on New Trends in Geomagnetism, Castle of Bechyn, Czechoslovakia, September 24–29, 1990. 相似文献
1