標(biāo)題: Titlebook: Environmental Magnetism; Roy Thompson,Frank Oldfield Book 1986 R. Thompson and F. Oldfield 1986 magnetism [打印本頁] 作者: ACE313 時(shí)間: 2025-3-21 16:49
書目名稱Environmental Magnetism影響因子(影響力)
作者: 夾克怕包裹 時(shí)間: 2025-3-21 21:56 作者: Entrancing 時(shí)間: 2025-3-22 04:11
Natural magnetic minerals, is an important constituent of the majority of rocks found at the Earth’s surface. Along with the commonest crustal metal, aluminium, it combines with the two most plentiful crustal elements, oxygen and silicon, to build up many of the common rock-forming minerals (Table 3.1).作者: 骨 時(shí)間: 2025-3-22 06:57 作者: Engaged 時(shí)間: 2025-3-22 08:51
,The Earth’s magnetic field, the field and its variation with time. Field measurements are now made from ships, aeroplanes and satellites as well as on the ground. For older records of the geomagnetic field and its changes with time we must turn away from historical documents to the study of the fossil magnetism in the Earth’s作者: agnostic 時(shí)間: 2025-3-22 13:27
Techniques of magnetic measurements, has improved dramatically. Advances have included increases in sensitivity, speed of measurement, portability, availability and simplicity of operation. Magnetic susceptibility equipment is now commercially available at reasonable cost largely owing to the technology developed for the amateur metal作者: agnostic 時(shí)間: 2025-3-22 17:02
Magnetic minerals and environmental systems,ich are the concern of environmental scientists. Whether we are studying the lithosphere, hydrosphere or atmosphere, or the cycles which involve the transfer of material between them, the movement of solid particles in some form or other is of major importance. The processes involved include entirel作者: 錢財(cái) 時(shí)間: 2025-3-22 21:49
Soil magnetism,susceptibility measurements, a number of authors have pointed to ways in which magnetic measurements can be used in pedology and related fields. Following Le Borgne (1955), several Western and Russian authors have studied the mechanisms whereby magnetic susceptibility (4.4) is often ‘enhanced’ in su作者: 禁止 時(shí)間: 2025-3-23 03:48 作者: FAR 時(shí)間: 2025-3-23 06:41
Mineral magnetic studies of lake sediments,ntific curiosity in the sediment-based reconstruction of past environmental conditions, and also, especially over the last decade, a need to set studies of present day environmental processes and problems in a longer time perspective. This is often best achieved within the lake-watershed ecosystem f作者: Gentry 時(shí)間: 2025-3-23 12:23 作者: 踉蹌 時(shí)間: 2025-3-23 15:23 作者: muscle-fibers 時(shí)間: 2025-3-23 20:34 作者: Ondines-curse 時(shí)間: 2025-3-23 23:18
Secular variation magnetostratigraphy,urement techniques which have been found useful in investigating lake sediments and presents type palaeomagnetic secular variation records of both declination and inclination, from seven regions of the world. These patterns of secular change can be used as master curves for dating newly acquired pal作者: llibretto 時(shí)間: 2025-3-24 02:27 作者: 不在灌木叢中 時(shí)間: 2025-3-24 08:55 作者: 典型 時(shí)間: 2025-3-24 11:45
Prospects,irtually every case, there is considerable scope for further development. Future prospects range from the further extension and refinement of established approaches (for example secular variation studies of lake sediments), through the transfer of newly developed techniques to different types of env作者: Incise 時(shí)間: 2025-3-24 18:30 作者: 盡管 時(shí)間: 2025-3-24 19:18 作者: Glucocorticoids 時(shí)間: 2025-3-25 01:17 作者: 相互影響 時(shí)間: 2025-3-25 05:33 作者: Motilin 時(shí)間: 2025-3-25 10:00
Secular variation magnetostratigraphy,urement techniques which have been found useful in investigating lake sediments and presents type palaeomagnetic secular variation records of both declination and inclination, from seven regions of the world. These patterns of secular change can be used as master curves for dating newly acquired palaeomagnetic records.作者: Allure 時(shí)間: 2025-3-25 14:12 作者: 擁護(hù)者 時(shí)間: 2025-3-25 16:59 作者: ADORE 時(shí)間: 2025-3-25 20:43 作者: mitral-valve 時(shí)間: 2025-3-26 03:40
Epilogue: Religious Belief and the Future, information about the Earth’s ancient field by retaining a magnetic remanence acquired close to the time of their formation. The majority of magnetic studies of natural samples have thus been carried out by palaeomagnetists investigating natural remanent magnetisations. These studies have involved 作者: Anonymous 時(shí)間: 2025-3-26 07:39
M. Cary D.Litt.,H. H. Scullard F.B.A. the field and its variation with time. Field measurements are now made from ships, aeroplanes and satellites as well as on the ground. For older records of the geomagnetic field and its changes with time we must turn away from historical documents to the study of the fossil magnetism in the Earth’s作者: 永久 時(shí)間: 2025-3-26 11:00
A History of Rome through the Fifth Century has improved dramatically. Advances have included increases in sensitivity, speed of measurement, portability, availability and simplicity of operation. Magnetic susceptibility equipment is now commercially available at reasonable cost largely owing to the technology developed for the amateur metal作者: 改變 時(shí)間: 2025-3-26 13:16
https://doi.org/10.1007/978-1-349-00491-1ich are the concern of environmental scientists. Whether we are studying the lithosphere, hydrosphere or atmosphere, or the cycles which involve the transfer of material between them, the movement of solid particles in some form or other is of major importance. The processes involved include entirel作者: 排出 時(shí)間: 2025-3-26 18:43
https://doi.org/10.1007/978-94-009-8805-7susceptibility measurements, a number of authors have pointed to ways in which magnetic measurements can be used in pedology and related fields. Following Le Borgne (1955), several Western and Russian authors have studied the mechanisms whereby magnetic susceptibility (4.4) is often ‘enhanced’ in su作者: 壕溝 時(shí)間: 2025-3-27 00:02
Palgrave Studies in the History of Financenel, the particles will have been either released from the land surface and delivered to the channel by rainsplash, sheet erosion, rill and gully erosion or mass movement, or else removed from the channel banks or stream bed through the erosive effect of the moving water and its entrained load. Sedi作者: Budget 時(shí)間: 2025-3-27 01:47 作者: 疼死我了 時(shí)間: 2025-3-27 07:36
A History of Thought on Economic Integrationunction not only of the unfamiliarity of atmospheric scientists with the techniques of magnetic measurement appropriate to dust and aerosol studies, but also of severe problems involved in obtaining sufficiently large, uncontaminated samples representative of the full range of particle sizes present作者: 倫理學(xué) 時(shí)間: 2025-3-27 10:17
https://doi.org/10.1007/978-1-137-58120-4ificant sources of magnetic minerals are at their most varied and include not only all those of relevance to lacustrine and atmospheric studies but also submarine and extraterrestrial sources. Supply pathways are often more complex and extended than anywhere else. Depositional environments range fro作者: 引導(dǎo) 時(shí)間: 2025-3-27 16:53
,The Concept of “,” and National Identity, core, oscillates back and forth switching between its two stable modes of a ‘normal’ state in which the Earth’s magnetic field points north and a ‘reverse’ state in which the field points south. The geomagnetic chronometer lacks a regulator so it runs unevenly with switching intervals varying from 作者: BADGE 時(shí)間: 2025-3-27 20:05 作者: conjunctivitis 時(shí)間: 2025-3-27 22:20
A Future Painted in Sombre Colours,.2.4) and high quality magnetic shielding (Section 6.6.3). The subject of biomagnetism can be subdivided into three main topics according to the origin of the biomagnetic fields (Williamson & Kaufman 1981). These three topics of (a) magnetic precipitates formed through biochemically controlled proce作者: AV-node 時(shí)間: 2025-3-28 03:24
Evidence-Take Nanjing Massacre as Examplehe estuary comprise some 485 ha and the total catchment is 3332 ha. The tidal range is low ( <1 m) and the estuary is shallow with no strongly developed deep channels and a maximum water depth of about 4 m at its mouth. The open water is bordered for the most part by gentle wooded slopes though ther作者: 使虛弱 時(shí)間: 2025-3-28 07:20 作者: 概觀 時(shí)間: 2025-3-28 12:51
http://image.papertrans.cn/e/image/312740.jpg作者: maculated 時(shí)間: 2025-3-28 16:19
Book 1986sciplinary studies‘. John Passmore Man‘s responsibility for nature The present text has arisen from some thirteen years advances in our perception, appraisal and creative use of collaboration between the two authors. During that of order in natural systems. Out of this can come period, upwards of a 作者: 復(fù)習(xí) 時(shí)間: 2025-3-28 20:22 作者: 最后一個(gè) 時(shí)間: 2025-3-28 23:43 作者: Obvious 時(shí)間: 2025-3-29 03:15 作者: 地名表 時(shí)間: 2025-3-29 07:45 作者: Humble 時(shí)間: 2025-3-29 13:06
Introduction,nts of palaeomagnetic intensities and pole positions, the dynamics of the Earth’s fluid core. This very diversity presents us with a formidable challenge at the outset, the more so since in most of the disciplines touched on, few workers are familiar with either the principles of magnetism involved or with the methods of study employed.作者: 植物學(xué) 時(shí)間: 2025-3-29 18:09
Magnetic properties of solids,magnetic field though in the case of conventionally ‘non-magnetic’ materials the reaction will be very weak. A powerful electromagnet and sensitive measuring instrument are needed to demonstrate these weak reactions.作者: 吹牛大王 時(shí)間: 2025-3-29 23:02
Magnetic minerals in the atmosphere,ut also of severe problems involved in obtaining sufficiently large, uncontaminated samples representative of the full range of particle sizes present. The sections which follow identify particular themes and outline the very modest progress made so far in each case. No attempt at a comprehensive review of atmospheric magnetism is yet possible.作者: 蔑視 時(shí)間: 2025-3-30 03:56 作者: Alcove 時(shí)間: 2025-3-30 06:30 作者: Ingrained 時(shí)間: 2025-3-30 11:27
Palgrave Studies in the History of Financement within the channel is normally considered as either suspended sediment or bedload, though as flow conditions vary through space and time the distinction is more one of practical convenience than of consistent differentiation.作者: 六邊形 時(shí)間: 2025-3-30 16:12
,The Concept of “,” and National Identity,a few thousand years to several tens of millions of years. The magnetic timing system of north-south flips, tags rocks as they form with its binary reversal code. Palaeomagnetists have unravelled the magnetic coding scheme so that palaeomagnetic remanence signatures can now be used to date sequences of lava flows and sediments.作者: BALK 時(shí)間: 2025-3-30 19:08 作者: 噱頭 時(shí)間: 2025-3-30 22:38 作者: 委派 時(shí)間: 2025-3-31 02:00
Reconstruction of the External Genitalia,nts of palaeomagnetic intensities and pole positions, the dynamics of the Earth’s fluid core. This very diversity presents us with a formidable challenge at the outset, the more so since in most of the disciplines touched on, few workers are familiar with either the principles of magnetism involved or with the methods of study employed.作者: 入伍儀式 時(shí)間: 2025-3-31 05:21 作者: 漂泊 時(shí)間: 2025-3-31 11:07
A History of Thought on Economic Integrationut also of severe problems involved in obtaining sufficiently large, uncontaminated samples representative of the full range of particle sizes present. The sections which follow identify particular themes and outline the very modest progress made so far in each case. No attempt at a comprehensive review of atmospheric magnetism is yet possible.作者: 圣歌 時(shí)間: 2025-3-31 14:24
A Future Painted in Sombre Colours,n of the biomagnetic fields (Williamson & Kaufman 1981). These three topics of (a) magnetic precipitates formed through biochemically controlled processes, (b) magnetic contaminants and (c) electric currents arising from ion flow in various organs such as the heart and the brain are all discussed below.作者: 江湖騙子 時(shí)間: 2025-3-31 17:40
Magnetic minerals and environmental systems,y natural ones such as the major ocean circulation systems more or less unaffected by human activity, many others such as soil development and river erosion strongly modified by man’s activity, and some, for example the particulate output associated with fossil-fuel combustion, which are entirely the result of modern technology.
