The Avalon Terrane of Newfoundland: geophysical correlations from onshore to offshore as evidence for Precambrian to Tertiary structural evolution

Miller, Hugh G.; Singh, Vijay

doi:10.1016/0040-1951(94)00204-m

Cited by 9 publications

(9 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, the presence of numerous, short, closely spaced features is the same on both sides o f the Atlantic Ocean. The short and discontinuous features generally have not been represented by most European authors, who have presented only the aggregate, or major zones, similar to these on the Canadian side (Miller and Singh 1995).…”

Section: Data Setsmentioning

confidence: 96%

“…1). Miller and Singh (1995) fiirther identified several major lineations oriented NW-SE based on aggregation patterns for the directional arrows. The arrows then are primary data, and the inferred lineations are a secondorder set comparable to the European data set.…”

Section: Data Setsmentioning

confidence: 99%

“…The seismic data have been processed and interpreted by Welsink et al (1988). Some variance exists in the interpretation o f the age o f some of the features on the Grand Banks; Miller and Singh (1995) presented an argument for an age predating the present opening, whereas Welsink et al (1988) and Miller (1990) presented another argument for a Mesozoic age. Williams et al (1995) presented an argument for Mesozoic age for similar features on land throughout eastern Canada.…”

Section: Data Setsmentioning

confidence: 99%

“…On the European side, considerable data existed and a number of interpretations have been published (e.g., Lefort 1973;. On the North American side, the data existed, but interpretation of the presence of the NW-oriented features (azimuths between 310° and 320°) on land (Miller 1990;Williams et al 1995) and on the Grand Banks of Newfoundland (Welsink et al 1988;Miller 1990;Miller and Singh 1995) were presented more recently. On the European side, the continental shelves are narrow and contain many NW-trending faults.…”

Section: Introductionmentioning

confidence: 99%

“…These apparent differences led to speculation that the inferred asymmetry o f faulting controlled the opening o f the North Atlantic Ocean (Lefort 1973). New data (Miller and Singh 1995) for the North American margin has prompted a re examination o f the interpretations o f Kay (1969) and Lefort (1973). Kay (1969) noted the general northeasterly trend o f the Canadian Appalachian orogen and inferred its continuity northeastward onto, and across, the continental shelf northeast o f Newfoundland from the sparse geophysical data available to him.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

NW-oriented features on both sides of the Atlantic Ocean: evidence for a Paleozoic collision that formed the Labrador-Biscay wrench fault zone?

Lefort

Miller

1999

atgeol

View full text Add to dashboard Cite

Northwest-oriented features have been recognized for many years as fundamental components of the geology of the northwestern European continental shelves. Similarly oriented lineations and faults have been mapped throughout southwestern Britain, western France and across the English Channel. On land in Europe, similar trends are identified as far east as the Urals. Features of similar orientation, extending over a broad area on the North American continental shelf, have recently been identified from geophysical trends. On land in eastern Canada NW-SE faults have been mapped geologically and detected using geophysical and remote sensing data. A Mercator projection map on which the Atlantic Ocean has been restored to its pre-Mesozoic configuration, i.e. before the initiation of the most recent opening of the North Atlantic Ocean, shows that the features are similarly oriented. Although some of the trends showing this direction may be younger, the geological data from both sides of the Atlantic Ocean suggest that the event that led to the formation of these NW-SE features postdated the Variscan orogeny and may have been associated with the collision between Gondwana and Laurasia. The geometric patterns of the features interpreted as associated with the collision are consistent with patterns produced by a simple physical sandbox model of indentation with a rigid confinement to the west and a small lateral confinement to the east. This configuration is similar to that expected of Gondwana and Laurasia during the late Paleozoic. Faults considered younger than this collision may represent tectonic rejuvenations associated with the initiation of the opening of the North Atlantic Ocean. L'orientation observde du nord-est vers le sud-est des formations rocheuses est reconnue depuis de nombreuses ann6es comme une caractdristique gdologique fondamentale des plateaux continentaux du nord-ouest de l'Europe. Des structures lindaires et des failles d'orientation similaires ont 6t6 repertories dans tout le sud-ouest de FAngleterre, dans l'ouest de la France et k travers la Manche. Sur le continent europden, des tendances analogues ont pu etre observdes aussi loin k Test que dans la chaine de l'Oural. Ces caractdristiques orientdes qui recouvrent une vaste rdgion du plateau continental de l'Amdrique du Nord ont rdcemment dtd observdes a partir de tendances gdophysiques. Dans l'Est canadien, des failles orientdes NOSE ont dtd portdes sur des cartes gdologiques et ddtectdes k l'aid.e de donndes gdophysiques et de tdldddtection. Ces caractdristiques observdes ont dtd portdes sur une carte k projection de Mercator ou figure l'ocdan Atlantique dans sa configuration d'origine pendant l'dre prd-mdsozo'fque, soit avant que ne s'amorce l'ouverture la plus rdcente de l'Atlantique Nord. Ces caractdristiques reproduisent la meme orientation lorsqu'elles sont portdes ainsi sur la carte. Bien que certaines des tendances qui signalent cette orientation semblent d'apparition plus rdcente, les donndes gdologiques des deux cotds de l'Atlantique por...

show abstract

Section: Data Setsmentioning

confidence: 96%

Section: Data Setsmentioning

confidence: 99%