Continuous sea-floor spreading in Red Sea: An alternative interpretation of magnetic anomaly pattern
Labrecque, J.L.; Zitellini, N. (1985). Continuous sea-floor spreading in Red Sea: An alternative interpretation of magnetic anomaly pattern. AAPG Bull. 69(4): 513-524
In: AAPG Bulletin. American Association of Petroleum Geologists (AAPG): Tulsa, Okla.. ISSN 0149-1423; e-ISSN 1558-9153, more
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| Keywords |
Anomalies > Magnetic anomalies
Earth sciences > Geology > Stratigraphy
Seafloor spreading
Sedimentary structures
Topographic features > Submarine features > Continental margins
Marine/Coastal |
| Authors | | Top |
- Labrecque, J.L.
- Zitellini, N.
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| Abstract |
The magnetic anomaly pattern over the Red Sea can be modeled as a continuous system of sea-floor spreading from the early Miocene to the present by using a time-varying process filter. Application of a time-varying process filter appears to be a powerful tool in analyzing magnetic anomalies over passive continental margins. The flow parameter is estimated to be 2.7 km (1.7 mi) and the intrusion parameter to be 7.5 km (4.7 mi) at early rifting. These values suggest that a side distribution of axial dikes or horizontal strain is the dominant factor in forming the magnetic anomaly pattern. Reduction in the width of the intrusion parameter and the effusion rate as rifting proceeded resulted in focusing of the strain, thinning of l ayer 2, and formation of the Red Sea deeps. |
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