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Medlas network
JOURNAL OF GEODYNAMICS9, 139 (1988)
139
EFFECT OF TECTONIC M O V E M E N T S O N C H O R D DISTANCES BETWEEN E G Y P T A N D THE W E G E N E R ] M E D L A S NETWORK
B. B. BAGHOS, Y. E. HELALI and M. Y. TAWADROUS
National Research Institute o f Astronomy and Geophysics, Helwan - Cairo, Egypt (Accepted January 5, 1988)
ABSTRACT Baghos, B. B., Helali, Y. E. and Tawadraus, M. Y., 1988. Effect of tectonic movements on chord distances between Egypt and the Wegener/Medlas network. In: Yu. D. Boulanger, S. Holdahl and P. Vysko~il (Editors), Recent Crustal Movements. Journal o f Geodynamics, 9: 139. This paper is a contribution to the recent studies of crustal plate motions in the eastern Mediterranean area. The equations representing the changes of the lengths of the chord distances and the estimated standard deviations are obtained in terms of the kinematic parameters which describe the relative motions of two plates. The expected changes between three selected sites in Egypt (Helwan, Matruh and Abu Simble) and W E G E N E R / M E D L A S network stations are given in Table I.
TABLE I Expected changes of chord distanccs and their standard deviations in cm/a. Site Siracusia Malta Kephalonia Sparta Kolymvarion Sitia Rhodos Ulu Dag lskilip Karaman
0264-3707/88/$3.00
Helwan -0.35 -0.29 -0.52 -0.53 -0.48 -0.58 -0.73 -0.80 -0.83 -0.83
__.0.12 ___0.12 -t- 0.12 4- 0.12 + 0.12 _ 0.12 + 0.12 4- 0.11 __+0.11 _+0.11
9 1988 Geophysical Press Ltd.
Matruh -0.38 -0.30 -0.59 -0.62 -0.60 -0.74 -0.79 -0.78 -0.71 -0.65
4- 0.12 ___0.12 + 0.12 4- 0.12 4- 0.12 ___0.11 + 0.10 _+0.I0 ___0.09 4- 0.09
Abu Simble -0.49 -0.45 -0.63 -0.65 -0.65 -0.71 -0.77 -0.80 -0.84 -0.84
___0.12 -I- 0.12 4- 0.12 ___0.12 4- 0.I2 ___0.11 -I- 0.11 4- 0.I I 4- 0.11 4- 0.11
139
EFFECT OF TECTONIC M O V E M E N T S O N C H O R D DISTANCES BETWEEN E G Y P T A N D THE W E G E N E R ] M E D L A S NETWORK
B. B. BAGHOS, Y. E. HELALI and M. Y. TAWADROUS
National Research Institute o f Astronomy and Geophysics, Helwan - Cairo, Egypt (Accepted January 5, 1988)
ABSTRACT Baghos, B. B., Helali, Y. E. and Tawadraus, M. Y., 1988. Effect of tectonic movements on chord distances between Egypt and the Wegener/Medlas network. In: Yu. D. Boulanger, S. Holdahl and P. Vysko~il (Editors), Recent Crustal Movements. Journal o f Geodynamics, 9: 139. This paper is a contribution to the recent studies of crustal plate motions in the eastern Mediterranean area. The equations representing the changes of the lengths of the chord distances and the estimated standard deviations are obtained in terms of the kinematic parameters which describe the relative motions of two plates. The expected changes between three selected sites in Egypt (Helwan, Matruh and Abu Simble) and W E G E N E R / M E D L A S network stations are given in Table I.
TABLE I Expected changes of chord distanccs and their standard deviations in cm/a. Site Siracusia Malta Kephalonia Sparta Kolymvarion Sitia Rhodos Ulu Dag lskilip Karaman
0264-3707/88/$3.00
Helwan -0.35 -0.29 -0.52 -0.53 -0.48 -0.58 -0.73 -0.80 -0.83 -0.83
__.0.12 ___0.12 -t- 0.12 4- 0.12 + 0.12 _ 0.12 + 0.12 4- 0.11 __+0.11 _+0.11
9 1988 Geophysical Press Ltd.
Matruh -0.38 -0.30 -0.59 -0.62 -0.60 -0.74 -0.79 -0.78 -0.71 -0.65
4- 0.12 ___0.12 + 0.12 4- 0.12 4- 0.12 ___0.11 + 0.10 _+0.I0 ___0.09 4- 0.09
Abu Simble -0.49 -0.45 -0.63 -0.65 -0.65 -0.71 -0.77 -0.80 -0.84 -0.84
___0.12 -I- 0.12 4- 0.12 ___0.12 4- 0.I2 ___0.11 -I- 0.11 4- 0.I I 4- 0.11 4- 0.11