K.‐H. Jäckel

Seismotectonics of Sri Lanka—insights from the first island-wide temporary network

Christian Haberland, Mahinda Seneviratne, T. Ryberg, K.‐H. Jäckel

Abstract In 2016 and 2017, we operated a temporary broadband seismic network with 30 stations in Sri Lanka, the first covering almost the entire island, to obtain a detailed overview on the seismicity and the deeper structure. Three permanent seismic stations complemented …

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A Quasi Absolute Optically Pumped Magnetometer for the Permanent Recording of the Earth's Magnetic Field Vector (OPC)

Eberhard Pulz, K.‐H. Jäckel, Oliver Bronkalla

Despite the advance of technology, the fully automatic recording of absolute magnetic field vector variation at observatories remains an elusive goal. Primary difficulties are the long term stability of sensor orientation and the stable operation of the sensor system. In standard practice, …

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Correction to “Anatomy of the Dead Sea Transform from lithospheric to microscopic scale”

Michael Weber, K. Abu‐Ayyash, A. Abueladas, A. Agnon et autres

Anatomy of the Dead Sea Transform from lithospheric to microscopic scale

Michael Weber, K. Abu‐Ayyash, A. Abueladas, Amotz Agnon et autres

Fault zones are the locations where motion of tectonic plates, often associated with earthquakes, is accommodated. Despite a rapid increase in the understanding of faults in the last decades, our knowledge of their geometry, petrophysical properties, and controlling processes remains incomplete. The …

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Suitability of Short-Period Sensors for Retrieving Reliable H/V Peaks for Frequencies Less Than 1 Hz

Angelo Strollo, Stefano Parolai, K.‐H. Jäckel, Simone Marzorati et autres

Using three different short-period electromagnetic sensors with resonance frequencies of 1 Hz (Mark L4C-3D), 2 Hz (Mark L-22D), and 4.5 Hz (I/OSM-6), coupled with three digital acquisition system, the portable data acquisition system (PDAS) Teledyne Geotech, the refraction technology (REFTEK) 72A, and …

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On the suitability of 1 s geophone for ambient noise measurements in the 0.1–20Hz frequency range: experimental outcomes

Angelo Strollo, Dino Bindi, Stefano Parolai, K.‐H. Jäckel

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The crustal structure of the Dead Sea Transform

Michael Weber, K. Abu‐Ayyash, A. Abueladas, Amotz Agnon et autres

To address one of the central questions of plate tectonics—How do large transform systems work and what are their typical features?—seismic investigations across the Dead Sea Transform (DST), the boundary between the African and Arabian plates in the Middle East, were conducted …

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Multinational geoscientific research effort kicks off in the Middle East

K. Abu‐Ayyash, A. Abueladas, M. Daoud, I. Qabbani et autres

The Dead Sea Rift Transect (DESERT 2000) is a multinational and interdisciplinary study of the Dead Sea Rift. The project began fieldwork in February 2000 and the first experiments were successfully completed in May. The seismic, seismological, and magnetotelluric experiments presented here, …

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Fibre Optic Remote Displacement Sensor for Seismic Events at High Temperature

Wolfgang Ecke, K.‐H. Jäckel, Peter Pfeifer, J. Schauer et autres

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High Temperature Interferometric Displacement Measuring System for Fibre Optic Seismic Sensors in Deep Borehole Applications

Wolfgang Ecke, K.‐H. Jäckel, J. Schauer, R. Willsch

A fibre-coupled Michelson interferometer has been developed for vibration measurement in seismic sensors for deep boreholes at temperatures up to 300°C. Results of long-term thermal stability tests of components and construction techniques have been used to develop a sensor device showing constant …

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Simulation oi Contrasts in X-ray Plane Wave Topographs of Quartz Crystals with Induced Growth Striations

J. Härtwig, K.‐H. Jäckel, Veronika Lerche

Simulation of contrasts in X‐ray plane wave topographs of quartz crystals with induced growth striations

J. Härtwig, K.‐H. Jäckel, Veronika Lerche

Abstract Using system theoretical methods and fast discrete Fourier transforms, contrasts in plane wave topographs of crystals with impurity distributions of any form can be simulated with high accuracy and in a short time.

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