古磁氣學의 方法 (Ⅰ)

• 영문명: Methods in Palaeomagnetism (Ⅰ)
• 발행기관: 대한자원환경지질학회
• 저자명: In Soo Kim(金仁洙)
• 간행물 정보: 『자원환경지질』17권 2호, 141~147쪽, 전체 7쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1984.04.30

영문 초록

For the discussion of palaeogeomagnetic field direction and the movement and rotation of geotectonic blocks it is prerequisite to eliminate the secondary remanent magnetization component out of the NRM vector of given rock samples. Among various techniques alternating field and thermal demagnetization methods are most easily applicable and most widely used ones. Physical principle underlying these methods is the concept of relaxation time: Either with an action of external magnetic field or with an elevated temperature relaxation time of magnetic minerals can be drastically shortened. It has been furthermore shown experimentally that the secondary remanent magnetization can be more easily demagnetized than the primary remanent magnetization. Through careful stepwise demagnetization it should also be possible to discriminate the kind of various remanent magnetizations. In addition to the introduction to the underlying physical principles and experimental results of the alternating field and thermal demagnetization this paper gives various practical tips in earring out the demagnetization experiments. Each alternating field and thermal demagnetization instrumentation which is easily adaptable to domestic palaeomagnetic laboratories is also introduced. This paper provides a compact and practical introduction to the methods in palaeomagnetism and would be of interest to present workers and to those who want to embark on research in this field.

목차

Abstract

서언

자기세척법의 원리와 방법

각종 잔류자기의 세척에 대한 저항성

세척장치의 예

결언

참고문헌