TY  - JOUR
T1  - AMS, A Method for Determining Magma Flow in Dykes (Case Study: Andesite Dyke)
AU - Yazdi, Abdollah AU - Razavi, Roghayesadat AU - ShahHoseini, Elham 
JO  - Research Journal of Applied Sciences
VL  - 11
IS  - 3
SP  - 62
EP  - 67
PY  - 2016
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2016.62.67
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2016.62.67
KW  - petrofabric
KW  -Iran
KW  -fabrics
KW  -dyke
KW  -AMS Method
AB  - Relying on the magnetic fabrics study, Anisotropy of Magnetic Susceptibility (AMS) enjoys a special
status in determining the mechanism and model of emplacement of intrusive rocks. Parameters resulted from
AMS study is based on behaviors of magnetic minerals. The most important function of magnetic anisotropy
measurement is to analyze rocks’ petrofabric which will be possible through identification of mineral stones and
their magnetic anisotropic characteristics. One of such dykes, located at the Southwestern wing of Sabzevar
City was studied using magnetic Anisotropic Method. Studies showed that the Km value (in terms of μSI)
ranges between 33334 and 96836 and represent the clear presence of magnetite in the studied rocks. Lineation
and foliation gradients represent magma flow in a roughly longitudinal plane. The magnetic anisotropy values
vary between 0.38 and 1.76. With regard to the achieved values for the (T) shape parameter, most magnetic
ellipsoidal figures were prolate form.
ER  -