地磁场(AR)中剪切断层型断裂(破裂)的表达:以 Lisagor 矿田为例
摘要
条件及其意义被表示为矿山控制结构。特别是剪切断层断裂,除了环境磁畴结构的机械变化外,还会导致磁畴磁矩的定向和
磁矩的减小。因此,断裂带的地磁异常场强度在一定程度上降低,这在磁力测量过程中有时无法记录,特别是当扰动发生在
磁性较弱的复杂沉积岩区域时。该问题的解决方案,尤其是在褶皱区域,可以通过存在具有陡坡的磁性活动层(基性岩脉、
磁铁矿砂岩等),该层经历了剪切断层破裂。本文介绍了在 AR 的 Lisagore 矿区通过地磁研究发现的剪切断层型断裂。这些断
裂表现在带有砂岩夹层的泥质岩磁活动层的几个滑动幕中,地质图中也对此进行了描述。泥板岩本身不具有磁性财产,因此
其磁性活动可以用磁铁矿-砂岩薄夹层的存在来解释,这些夹层由一系列 T 场的高强度线性异常所描述,这些异常被断裂位置
处滑动幅度的大小所中断并相互偏离。
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[1] Grinkevich G. I., Magnetic exploration, Moscow, N
edra, 1987, 248p. [2] Logachev A. A., Zakharov V. P., Magnitorazvedka. L. Nedra, 1979, 351 p. [3] Magnetic prospecting: Handbook of geophysics./Un
der. Editor V. E. Nikitisky and Yu. S. Glebovsky.-M.; Nedr a, 1980. [4] Khmelevskoy V. K. Geophysical methods of resear ch of the earth's crust. International University of nature, s ociety and man, Dubna, 1999, 203p. [5] Gabrielyan A. A., Sarkisyan O. A., Simonyan G. P., Seismotectonics of the Armenian SSR. YSU, Yerevan, 1
981, 283p. [6] Nazaretyan S. N., Durgaryan R. R., Shakhbekyan T. H., Grigoryan A. G., Mirzoyan L. B.- Regional faults o
f the territory of Armenia according to geophysical data an
d their seismicity. Yerevan 2015, Gitutyun, 183p. [7] Nazaretyan S. N., Mikaelyan E. M., Mirzoyan L. B., Fault systems and tectonic active regional faults in the
territory of Armenia, Bulletin of the Mining University of
Ukraine, N11, 2007, pp. 34-37. [8] Tevelev Ark. V. Shear tectonics. M.: Publishing Ho
use of Moscow. un., (2005), 254p. [9] Physical properties of rocks and minerals. (Petroph
ysics) Handbook of geophysics. /Under. Ed. N. B. Dortman, - M., "Nedra" (1992), 391p. [10] Kishnarev I. P., Methods for studying fractures. N
edra, Moscow, 1977, 248 p. [11] Kuznetsov N. S, Filatov V. P, Savelyev V. P, Tec
tonophysical analysis of geophysical fields; Application exp
erience in geological surveys; Proceedings of the Ural state mining and geological academy, series; Geology and geop
hysics, 2000, N10. [12] Strakhov V. N, Methods of interpretation of gravi
tational and magnetic anomalies. Perm, Perm University, 20
04. [13] Markosyan G. V. Spatial paleomagnetic anisotropy
of geological environment (Monograph), LAP LAMBERT
Academik Publishing, 2019, p. 114. [14] Avchyan G. M., Markosyan G. V. Connection of
the direction of destruction of rocks with paleomagnetic lay
ering, Izvestiya AS Arm. SSR, Earth Sciences, N6, 1988. [15] Markosyan G. V. Report on geophysical works ca
rried out at the Lisagore copper mining site of the NKR, Stepanakert, Fund of the "Future Generations" Foundation, 2015, 60 p.
DOI: http://dx.doi.org/10.12361/2661-3646-05-03-128817
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