INTERPRETATION OF MAGNETIC ANAMALIES DUE TO DIKES

Abstract

Vertical component of the magnetic anomalies and, horizontal and vertical gradients are calculated by using the theoritical dike formula into which varying parameters resulting from different situation between depth and widthness of a dipping dike are submitted. Amplitude and phase functions associated with the dike are plotted through the values of the gradients. And also, as a result of these functions the conformity of the dike parameters are observed. A field application is added. The horizontal and the vertical gradients, 1which the later derived by means of Hilbert transformation are obtained by taken a c1 c;..l profile from a map of vertical component of the magnetic field which is belong to a dike in the area of Akc;akoca (Bolu). Result: All the paTameters of the dike are found from the gradients. In order to check validity of the method (the complax gradient) the calculated parametrical values of the dlk ~ from C1 <; profile were first put into the theoritical dike (AZ) formula; then, a comparison was made between the theoritical dike anomaly anu on the one of the map. It was observed that the two anomalies are quite
similar ea.ch other. 

Keywords

• INTERPRETATION
• MAGNETIC
• ANAMALIES

Daykların Oluşturduğu Mağnetik Anomalilerin Yorumu

Abstract

Dal!ml1 dayklarm derinligi Ile, yilzey geni§ligi arasmdaki farkh durumlara ait Qe§itli parametreler, teorik dayk formillilnde yerlerine konularak, mag-netik dil§ey bile§en anomalileri ile yatay ve dil§ey gradientleri hesap edildi. Hesaplanan gradient degerleri kullamlarak, amplittid ve faz fonksiyonlan c;izildi. Bu fonksiyonlarm dokilmilnden daykm parametreleri bulundu. Bulunan bu parametrelerin, teorik dayk formillilnde kullamlan parametrelere c;ok yakm oldugu gorilldil., Uygulama olarak, Akc;akoca (Bolu) yoresinde daykla ilgili magnetik dil§ey bile§en haritasmdan alman bir c1 q~ profili kullamldi. Bu profil anomalisinin yatay gradient! hesaplandi. Sonra, yatay gradient degerlerine Hilbert transformu uygulanarak dii§ey gradient degerleri bulundu. Yatay ve dil§ey gradientlerden, amplitild ve faz fonksiyonla,n elde edildi. Bu fonksiyonlarm dokiimilnden de daykm biltiln parametreleri hesaplandt. Uygulanan yontemin (kompleks gradient) gec;erliliglni kontrol etmek ic;in, hesaplanan ' bu parametrik degerler, teorik dayk C.iZ) fonnillilnde yerlerine konularak, elde edilen teorik dayk anomalisi ile, C1 <; profilinin arazi anomalisi tist tiste 0ak1§hnld1. Sonuc;ta bu iki anomalinin birbirlerine c;ok benzer oldugu gorilldil. 

Keywords

• Daykların
• Mağnetik
• Anomalilerin