scholarly journals A report on magnetic disturbances in northamptonshire and leicestershire and their relations to the geological structure

1919 ◽  
Vol 219 (570) ◽  
pp. 73-135 ◽  
Keyword(s):  
Royal Society ◽  
Large Scale ◽  
Geological Structure ◽  
Magnetic Disturbance ◽  
British Isles ◽  
Magnetic Disturbances ◽  
Magnetic Phenomena

During the course of the magnetic re-survey of the British Isles, recently carried out by Mr. G. W. Walker under the auspices of the Royal Society, it was found that Melton Mowbray, Leicestershire, was a centre of pronounced magnetic disturbance, both vertical and horizontal. This result was in conformity with that obtained by Rucker and Thorpe in their surveys carried out 29 and 24 years earlier. So far as is known the only element that gives rise to magnetic phenomena on a large scale is iron. It appeared probable, therefore, that the local disturbances were to be connected with the distribution of iron in the rocks, and accordingly the origins of such disturbances were likely to be intimately related to the geological structure of the district.

scholarly journals XI. Note on an extension of the comparison of magnetic disturbances with magnetic effects inferred from observed terrestrial galvanic currents; and discussion of the magnetic effects inferred from galvanic currents on days of tranquil magnetism

1870 ◽  
Vol 160 ◽  
pp. 215-226 ◽  
Keyword(s):  
Royal Society ◽  
Principal Part ◽  
The Self ◽  
Magnetic Disturbance ◽  
Magnetic Effects ◽  
The Earth ◽  
Royal Observatory ◽  
Magnetic Disturbances

In a communication to the Royal Society, which was honoured by publication in the Philosophical Transactions for 1868, I described the methods and gave the results of comparing the Magnetic Disturbances which might be expected as consequent on the Terrestrial Galvanic Currents recorded by the self-registering galvanometers of the Royal Observatory of Greenwich, with the Magnetic Disturbances actually registered by the self-registering magnetometers. The comparison was limited to seventeen days (1865, October 5 and 31; 1866, October 4; 1867, April 4, 5, 7, 8, 9, 11, May 4, 14, 28, 31, June 1, 2, 7, 24), various days having been omitted in consequence of a doubt on the uniformity of the clock-movement of the registering-barrel, which afterwards proved to be unfounded. The results of the comparison were exhibited in curves, engraved copies of which are given in the volume of publication. I expressed my opinion that it was impossible to doubt the general causal connexion of the Galvanic Currents with the Magnetic Disturbances, but that some points yet remained to be cleared up. As soon as circumstances permitted, I undertook the examination of the whole of the Earth-currents recorded during the establishment of the Croydon and Dartford Wires (namely from 1865 April 1 to 1867 December 31), as far as they should appear to bear upon this and similar questions. For this purpose the days of observation were divided by Mr. Glaisher into three groups. Group No. 1 contained days of considerable mag­netic disturbance (or days of considerable galvanic disturbance, which are always the same), including, besides the seventeen days above-mentioned, the thirty-six days of the following list :—1865, April 15, 16, 17, 18, 19, May 14, 17, July 7,15, August 14,19, 26, September 8, 16, 28, October 4, 6, 10, 12, 14, November 1; 1866, August 11, 23, September 8, 9,12,13,17,18, 25, October 6, 7,10, 30, November 26 ; 1867, February 8; making in all fifty-three days of considerable magnetic disturbance. Group No. 2 consisted of days of moderate magnetic disturbance, and of these no further notice was taken. Group No. 3 contained the days of tranquil magnetism, and the discussion of these will form the principal part of the present Memoir.

scholarly journals The measurement of magnetic susceptibilities of low order

1920 ◽  
Vol 96 (680) ◽  
pp. 429-455 ◽  
Keyword(s):  
Iron Ore ◽  
Geological Structure ◽  
Considerable Importance ◽  
Magnetic Survey ◽  
British Isles ◽  
Present Communication ◽  
Magnetic Susceptibilities ◽  
Rock Specimens ◽  
Magnetic Disturbances ◽  
Low Order

The magnetic susceptibilities of various kinds of rock specimens have recently assumed considerable importance in relation to the new magnetic survey of the British Isles, and in this connection as a member of the Iron Ore Committee of the Conjoint Board of Scientific Studies, the author was asked to endeavour to obtain a solution of the problem, which, in its essentials, consisted mainly in the development of some instrument capable of measurement of susceptibilites of low order. At the suggestion of the Committee the author has prepared the present communication which contains an account of the instrument used, together with some of the results to which it has led. The particular work on rock specimens which was the origin of the enquiry is given in “A Report on Magnetic Disturbances in Northamptonshire and Leicestershire and their Relation to the Geological Structure.” The type of instrument which has been used in the work described in the present communication is a modification of that known as the Curie balance, and depends for its action upon the pull exerted by a magnet.

scholarly journals V. A comparison of the most notable disturbances of the magnetic declination in 1858 and 1859 at Kew and Nertschinsk, preceded by a brief retrospective view of the progress of the investiga­tion into the laws and causes of the magnetic disturbances

1864 ◽  
Vol 13 ◽  
pp. 247-252
Keyword(s):  
Royal Society ◽  
Systematic Investigation ◽  
British Association ◽  
British Government ◽  
Magnetic Declination ◽  
Retrospective View ◽  
Distinct Branch ◽  
Magnetic Disturbances ◽  
Magnetic Phenomena

The author commences this paper by taking a retrospective view of the principal facts which have been established regarding the magnetic disturb­ances, considered as a distinct branch of the magnetic phenomena of the globe, from the time when they were first made the objects of systematic investigation by associations formed for that express purpose, at Berlin in 1828 and at Göttingen in 1834, and dwelling more particularly on the results subsequently obtained by the more complete and extended researches instituted in 1840 by the British Government on the joint recommendation of the Royal Society and of the British Association for the Advancement of Science.

scholarly journals I. On periodical laws in the larger magnetic disturbance

1853 ◽  
Vol 143 ◽  
pp. 165-177
Keyword(s):  
Royal Society ◽  
Magnetic Disturbance ◽  
Cape Of Good Hope ◽  
Magnetic Declination ◽  
The Press ◽  
Meteorological Observations ◽  
St Helena ◽  
Magnetic Disturbances

Having submitted the hourly observations of the magnetic declination made at the St. Helena and the Cape of Good Hope Observatories to a course of examination similar to that undertaken by Colonel Sabine for Toronto and Hobarton, and published by him in the Philosophical Transactions, Part I. for 1851, and Part I. for 1852, also in Vol. II. Magnetical and Meteorological Observations at Hobarton, and VoI. II. Magnetical and Meteorological Observations at Toronto (now in the press), with the object of investigating some of the laws which govern the occurrence of the larger magnetic disturbances, I have found that at these two stations, as well as at the two others, the evidence is complete of the existence of laws of a periodical character: the facts appear to be important materials towards elucidating the general laws of disturbances, and I therefore venture to communicate them to the Royal Society. The observations which have been examined are comprised between September 1842 and September 1847 at St. Helena, and between July 1841 and July 1846 at the Cape of Good Hope; these periods include all the hourly observations that could be made available for discussion.

Mechanics Research on Rock Stress and Deformation of Lancang River Canyon's Large - Scale Dumping Deformation

2013 ◽  
Vol 353-356 ◽  
pp. 318-323
Author(s):  
Song Ye ◽  
Yu Sheng Li ◽  
Qian Guo
Keyword(s):  
Large Scale ◽  
Geological Structure ◽  
Deformation Characteristics ◽  
Deep Part ◽  
Trailing Edge ◽  
Geological Surveys ◽  
Depth Analysis ◽  
Numerical Simulation Methods ◽  
Complex Geological Structure ◽  
Stress And Deformation

This article is based on geological surveys combined with finite element and discrete element numerical simulation methods. In-depth analysis of the complex geological structure, deformation characteristics and stress - deformation problems of dumping rock, we clarify different deformation characteristics of deformable landslide inside, at the bottom and the deep part of trailing edge, and demonstrate the deformation will gradually shift from dumping to shear slip. Potential deformation failure mode will be dumped into the whole sliding - tension, which is controlled by the bottom broken belt, and potential deformation is mainly subject to the bottom fault F207-3 of deformed rock and the dumping broken belt at the deep part of trailing edge.

scholarly journals I. Note on an extension of the comparison of magnetic disturbances with magnetic effects inferred from observed terrestrial galvanic currents; and discussion of the magnetic effects inferred from galvanic currents on days of tranquil magnetism

1870 ◽  
Vol 18 (114-122) ◽  
pp. 183-185
Keyword(s):  
Magnetic Force ◽  
The Self ◽  
Instrumental Error ◽  
Magnetic Disturbance ◽  
Magnetic Effects ◽  
Royal Observatory ◽  
Moderate Disturbance ◽  
Magnetic Disturbances ◽  
Made In

The author, after referring to his paper in the Philosophical Transactions for 1868 on the comparison of Magnetic Disturbances inferred from Galvanic Currents recorded by the Self-registering Galvanometers of the Royal Observatory of Greenwich with the Magnetic Disturbances registered by the Magnetometers, on 17 days, states that he had now undertaken the examination of the whole of the Galvanic Currents recorded during the establishment of the Croydon and Dartford wires (from 1865 April 1 to 1867 October 24). The days of observation were divided into three groups,—No. I containing days of considerable magnetic disturbance, and therein including not only the 17 days above mentioned, but also 36 additional days, No. 2 containing days of moderate disturbance, of which no further use was made, and No. 3 containing the days of tranquil magnetism. The comparisons of the additional 36 disturbed days were made in the same manner as those of the preceding 17 days, and the inferences were the same. The results were shown in the same manner, by comparison of curves, which were exhibited to the Society. The points most worthy of notice are, that the general agreement of the strong irregularities, Galvanic and Magnetic, is very close, that the galvanic irregularities usually precede the magnetic, in time, and that the northerly magnetic force appears to be increased. The author remarks that no records appeared open to doubt as regards instrumental error, except those of western declination; and to remove this he had compared the Greenwich Curves with the Kew Curves, and had found them absolutely identical.

scholarly journals Features of the geological structure, tectonic development and oil and gas potential of the Chezhen depression (Bohai bay basin)

2021 ◽  
Vol 63 (5) ◽  
pp. 8-16
Author(s):  
Sh. Qiu ◽  
N. A. Kasyanova
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Geological Structure ◽  
Fault System ◽  
Bohai Bay ◽  
Industrial Oil ◽  
Tectonic Development ◽  
Geophysical Information ◽  
Oil Deposits ◽  
Gas Potential

Background. In terms of oil and gas, the territory of the Chezhen depression has been studied insufficiently compared to the neighbouring same-range depressions. These depressions complicate the first-order Jiyang depression, geographically coinciding with the largest Shengli hydrocarbon field. In recent years, much geological and geophysical information about the oil geologyof the Chezhen depression has been accumulated, which allows its prospecting oil and gas potential to be assessed.Aim. To reveal regular features of the geological structure and location of oil deposits in the Chezhen depression in order to support the prospecting and exploration work within the Chezhen block of the Shengli field.Materials and methods. A comprehensive analysis of literature data and collected materials was conducted. A historical and geodynamic study of the evolution of the studied area according to literature data was carried out, along with an analysis of the most recent geological and geophysical information and exploration data based on the materials of the “Shengli AKOO Sinopek” oil company. The analysis was based on the data from 52 drilling wells and the results of seismic surveys performed in the central part of the Chezhen depression.Results. Specific features of the block geological structure of the area under study were established, which formed under the repeated influence of large-scale horizontal tectonic movements occurring at different periods of geological history. The role of the most recent fault system in the modern spatial distribution of oil deposits was determined.Conclusions. Our studies demonstrate a great prospecting potential of the Chezhen depression territory, where the discovery of new industrial oil deposits can be expected.

Leading Through Art: An Interview With Vicki Heywood CBE, Chair, Royal Society of Arts

2018 ◽  
Vol 28 (1) ◽  
pp. 71-76
Author(s):  
Gareth Edwards ◽  
Nicholas O’Regan
Keyword(s):  
Royal Society ◽  
Large Scale ◽  
Recent Literature ◽  
International Perspective ◽  
Multiple Identities ◽  
Global Society ◽  
Leadership Practice ◽  
Global Issues ◽  
The Arts ◽  
Society Today

A recent interview with Vicki Heywood, Chair of the Royal Society of the Arts (RSA), highlights the role that arts can play in dealing with complex problems in society today and particularly from an international perspective. The message from this interview resonates with recent literature on leadership that also recognizes the importance of the arts in leading successfully through wicked problems. The importance of linking arts interpretations of leadership with culture and place is also taken into consideration within the analysis of the interview. The article concludes by suggesting that leadership practice into the future should promote leading through art to uncover the multiple identities and belonging that shape global society. More specifically, the article proposes that by leading through art, artists can help uncover and discover complex intricacies within context and culture which may help to problematize large scale generalizations which have become the epitome of serious global issues.

scholarly journals I. A comparison of the Kew and Lisbon magnetic curves during the magnetic storm of February 20-25, 1866

1868 ◽  
Vol 16 ◽  
pp. 399-403
Keyword(s):  
Magnetic Storm ◽  
Royal Society ◽  
Magnetic Disturbances

During the 20th, 21st, 23rd, 24th, and 25th of February 1866, large magnetic disturbances were recorded by the magnetographs at the Lisbon and Kew Observatories. As these indicate several appreciable deviations from the normal types, I trust a description of them may be not without interest to the Royal Society. Dr. Stewart, Director of the Kew Observatory, has kindly sent me copies of the Kew magnetic curves during these disturbances.

Sign in / Sign up

Export Citation Format

Share Document