The possibilities of paleomagnetic and geohistorical analyses of “tiny wiggles” short-period marine magnetic anomalies. / Ivanov, S. A.; Merkuryev, S. A.
In: Geomagnetism and Aeronomy, Vol. 56, No. 3, 01.05.2016, p. 367-379.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - The possibilities of paleomagnetic and geohistorical analyses of “tiny wiggles” short-period marine magnetic anomalies
AU - Ivanov, S. A.
AU - Merkuryev, S. A.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - Marine magnetic anomalies of the tiny wiggles (TW) type can be used to solve geohistorical and paleomagnetic problems. The model fields corresponding to Paleocene–Eocene anomalies in the northwestern Indian Ocean, which were formed during the fast-spreading stage, were studied. For these fields, widely used interpretation methods were compared with a method proposed previously by the authors. The testing was performed with first the classical block model and then more complex models reflecting actual processes of oceanic accretion and magnetic field variations in the past. It was shown that the proposed method has advantages for this problem; it gives an error close to the minimum possible error and can adequately be used in interpretations. Spectral and statistical methods are used to estimate the magnetic anomaly resolving power and to study some factors that can exert a distorting influence. In addition, model examples have been used to indicate how the TW determination accuracy is affected by diurnal variations in the main magnetic field (MMF) and by ancient magnetization vector determination errors.
AB - Marine magnetic anomalies of the tiny wiggles (TW) type can be used to solve geohistorical and paleomagnetic problems. The model fields corresponding to Paleocene–Eocene anomalies in the northwestern Indian Ocean, which were formed during the fast-spreading stage, were studied. For these fields, widely used interpretation methods were compared with a method proposed previously by the authors. The testing was performed with first the classical block model and then more complex models reflecting actual processes of oceanic accretion and magnetic field variations in the past. It was shown that the proposed method has advantages for this problem; it gives an error close to the minimum possible error and can adequately be used in interpretations. Spectral and statistical methods are used to estimate the magnetic anomaly resolving power and to study some factors that can exert a distorting influence. In addition, model examples have been used to indicate how the TW determination accuracy is affected by diurnal variations in the main magnetic field (MMF) and by ancient magnetization vector determination errors.
UR - http://www.scopus.com/inward/record.url?scp=84975709371&partnerID=8YFLogxK
U2 - 10.1134/S0016793216030087
DO - 10.1134/S0016793216030087
M3 - Article
AN - SCOPUS:84975709371
VL - 56
SP - 367
EP - 379
JO - Geomagnetism and Aeronomy
JF - Geomagnetism and Aeronomy
SN - 0016-7932
IS - 3
ER -
ID: 51323476