Multiphase activation of the boundary fault system of the eastern Dampier subbasin, Northwest Shelf of Australia

AAPG Bulletin ◽  
2021 ◽  
Vol 105 (1) ◽  
pp. 157-188
Author(s):  
Hongdan Deng ◽  
Ken McClay ◽  
Awad Bilal
Keyword(s):  
Fault System ◽  
Boundary Fault

Kinematic analysis of the Upper Rhine Graben boundary fault system

2006 ◽  
Vol 28 (6) ◽  
pp. 1028-1039 ◽  
Author(s):  
Gideon G.O. Lopes Cardozo ◽  
Jan H. Behrmann
Keyword(s):  
Kinematic Analysis ◽  
Fault System ◽  
Upper Rhine Graben ◽  
Boundary Fault ◽  
Rhine Graben ◽  
Upper Rhine

Permo-Carboniferous mylonite formation in the Walls Boundary Fault system, Shetland

1989 ◽  
Vol 47 (4) ◽  
pp. 339-343 ◽  
Author(s):  
D. S. Roddom ◽  
J. A. Miller ◽  
D. Flinn
Keyword(s):  
Fault System ◽  
Boundary Fault

scholarly journals Reinvestigation of the Cretaceous boundary fault in Sarqaqdalen, Nûgssuaq, central West Greenland

1989 ◽  
Vol 145 ◽  
pp. 28-32
Author(s):  
T.C.R Pulvertaft
Keyword(s):  
Fault System ◽  
West Greenland ◽  
Boundary Fault ◽  
Seismic Sequences

A reinvestigation of the major fauIt in Sarqaqdalen was undertaken in 1988 in response to a renewed interest in the style and timing of the whole fault system that marks the easterly limit of Cretaceous sediments in central West Greenland. This interest stems in turn from the reinterpretation ofseismic lines from the 1970s that has recently been initiated in GGU (Chalmers, 1988; 1989). Dating of seismic sequences isinfiuenced greatly by what ean be learnt from the nearest onshore outcrops, for example proven unconformities in onshore sequences, and demonstrable relationships between sedimentation and fauIt movements.

Paleoseismological trenching of the eastern Rhine Graben Boundary Fault: the Ettlingen segment

2020 ◽  
Author(s):  
Klaus Reicherter ◽  
Stephane Baize ◽  
Jochen Hürtgen ◽  
Francesca Cinti ◽  
Tom K. Rockwell ◽  
...  
Keyword(s):  
Forest Cover ◽  
Fault System ◽  
Upper Rhine Graben ◽  
Earthquake Activity ◽  
River Rhine ◽  
Boundary Fault ◽  
Sedimentary Sequences ◽  
Rhine Graben ◽  
The Alps ◽  
Glacial Periods

<p>Paleoseismic data on the eastern central Rhine Graben Boundary Fault, as part of the Upper Rhine Graben (URG) fault system, revealed Holocene earthquake activity with surface rupturing faults. The URG is one of the most seismically active areas in the stable continental interiors of Central Europe north of the Alps. We opened the first paleoseismic trenches N of Basel and S of Frankfurt along the ca. 300 km long eastern Rhine Graben Boundary Fault (RGBF). After extensive shallow geophysical and morphotectonic investigations and analyses, we discovered that the eastern central RGBF consists of several parallel fault strands that are marked by topographic steps, by varying hydrogeologic conditions, moisture content and by geophysical anomalies in the subsurface (GPR and ERT data). Some of the scarps close to the alluvial plain of the river Rhine have been identified as erosional features. We opened six trenches perpendicular and parallel to the second topographic scarp and strand of the main RGBF in Ettlingen area. Trenching the main RGBF was precluded due to forest cover and the presence of big blocks of rock in the colluvium at the base of the slope (red Triassic sandstones). Trenches were up to 20 m in length and 2 m in width, and up to 3 m in depth. None of the trenches reached the Triassic Buntsandstein “basement”, and all exposed Pleistocene and Holocene strata. Some strata are interpreted as blocky/gravelly colluvium of the Glacial periods, Loess, redeposited gleyey Loess, soli-/gelifluction layers and deposits and organic paleosols. Most of these layers are clearly displaced by faults and downthrown to the west, although some strata appear to warp or fold over faults. Massive liquefaction and periglacial features have been found, the relation to the sedimentary sequences in the trenches need to be elaborated in future. The process is interpreted to be instantaneous, as massive colluvium is placed against clayey/silty Loess deposits, and therefore we attribute these displacements to earthquake-related faulting. Creep along the strand can be ruled out. The displacement on free faces is on the order of 30 – 50 cm per event vertically, and considerable horizontal offset (ca. 2 m), and we found evidence for two of such events. Applying the commonly used empirical relationships, these findings are interpreted as two events with a magnitude M larger than 6. These results show the bias between the seismogenic landforms (scarps, hanging valleys, triangular facets, etc.) in the eastern UGR margin and seismicity recorded by seismic stations in the area, as currently most of the activity is found in the southern URG near Freiburg. Our findings contribute significantly to the completeness of the earthquake history in the eastern central URG.</p>

scholarly journals Late Tertiary fault activity in the southwestern boundary fault system of the Roer Valley Graben: evidences from the Bree area (NE Belgium)

2001 ◽  
Vol 80 (3-4) ◽  
pp. 69-78 ◽  
Author(s):  
M. Sintubin ◽  
O. Sels ◽  
P. Buffel
Keyword(s):  
Late Cretaceous ◽  
Fault System ◽  
Geological Data ◽  
Fault Activity ◽  
Boundary Fault ◽  
Inversion Event ◽  
Late Tertiary ◽  
Roer Valley Graben ◽  
Splay Faults

AbstractThe Bree Uplift is a particular structure in the direct footwall of the southwestern graben boundary fault system of the Roer Valley Graben, which has been firstly recognized at the base of the Cretaceous. To date fault activity around the Bree Uplift has been confined to the Subhercynian (late Cretaceous) inversion event or considered fading out during Tertiary times.The revision of the existing geological data reveals that the Bree Uplift can still be recognized on the top-Tertiary map. This infers at least a late Tertiary activity, suggesting continuous fault activity in the graben boundary fault system not only on the major boundary faults but also on different splay faults, bounding individual fault blocks.

Comparison of the San Andreas Fault System with the Highland Boundary Fault System of Scotland

1978 ◽  
Vol 115 (5) ◽  
pp. 367-372 ◽  
Author(s):  
R. St J. Lambert ◽  
W. S. McKerrow
Keyword(s):  
Southern California ◽  
San Andreas Fault ◽  
Fault System ◽  
Boundary Fault ◽  
San Andreas ◽  
San Andreas Fault System

SummaryThere are close geometrical and dimensional similarities between the faults in Scotland north of the Highland Boundary Fault and faults in southern California east of the San Andreas Fault. It is argued that the Moine Thrust and Oarlock Fault are equivalents and that the Great Glen Fault and the Rosamund Lineament are also equivalent, implying corresponding senses of movement and that the Highland Boundary Fault originated as a dextral transform. The comparison cannot be extended yet to the terrains to the N of the Oarlock Fault or W of the San Andreas or to the corresponding areas in the Caledonides.

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