The eastern Caledonian Highlands of southern New Brunswick consist mainly of greenschist-facies or subgreenschist-facics volcanic, sedimentary, and plutonic rocks generally considered to be typical of Late Precambrian sequences in the Avalon Terrane of the northern Appalachian Orogen. As aresult of regional mapping combined with petrological studies and radiometric dating, these rocks in the eastern Caledonian Highlands have been divided into two contrasting groups. The older group, apparently ranging in age from about 600 to 630 Ma, consists of metatuffaceous rocks ranging from mafic to felsic in composition, fine-grained volcanogenic metasedimentary rocks (slate and phyllite), arkosic metasedimentary rocks, and dioritic to granitic pluton...
Silurian–Devonian bimodal volcanism—a common feature of the northern Appalachians of the northeaster...
Near Cheticamp, northwestern Cape Breton Island, a sequence of supracrustal rocks overlies and cuts ...
The southeastern Cape Breton Highlands are composed of an eastern belt of predominantly granitoid ro...
Gabbro from the Caledonia Mountain Pluton in the northeastern Caledonian Highlands of southern New B...
The Cradle Brook fault zone in southern New Brunswick separates highly deformed Precambrlan terranes...
The Coldbrook Group is a unique suite of late Ediacaran volcanic and epiclastic rocks deposited in a...
The Brookville terrane forms a fault-bounded region, underlain mainly by plutonic and high-grade met...
Intrusive rocks in the Saint John area of southern New Brunswick are divided into separate plutonic ...
The Coldbrook Group is a unique suite of late Ediacaran volcanic and epiclastic rocks deposited in a...
Neoproterozoic III volcanic and sedimentary rocks in the Antigonish and Cobequid Highlands have very...
The Shelburne and Barrington Passage plutons are adjacent, but contrasting. Intrusions located on th...
The lower Silurian Kingston complex of southern New Brunswick consists of metamorphosed sheeted bimo...
Geological mapping and U-Pb (zircon) dating have led to the discovery of distinctive Lower Ordovicia...
New U–Pb zircon ages from volcanic, plutonic, and sedimentary units in the Avalonian Caledonia terra...
The volcanic succession of the Fountain Lake Group of the northern Chignecto peninsula consists of b...
Silurian–Devonian bimodal volcanism—a common feature of the northern Appalachians of the northeaster...
Near Cheticamp, northwestern Cape Breton Island, a sequence of supracrustal rocks overlies and cuts ...
The southeastern Cape Breton Highlands are composed of an eastern belt of predominantly granitoid ro...
Gabbro from the Caledonia Mountain Pluton in the northeastern Caledonian Highlands of southern New B...
The Cradle Brook fault zone in southern New Brunswick separates highly deformed Precambrlan terranes...
The Coldbrook Group is a unique suite of late Ediacaran volcanic and epiclastic rocks deposited in a...
The Brookville terrane forms a fault-bounded region, underlain mainly by plutonic and high-grade met...
Intrusive rocks in the Saint John area of southern New Brunswick are divided into separate plutonic ...
The Coldbrook Group is a unique suite of late Ediacaran volcanic and epiclastic rocks deposited in a...
Neoproterozoic III volcanic and sedimentary rocks in the Antigonish and Cobequid Highlands have very...
The Shelburne and Barrington Passage plutons are adjacent, but contrasting. Intrusions located on th...
The lower Silurian Kingston complex of southern New Brunswick consists of metamorphosed sheeted bimo...
Geological mapping and U-Pb (zircon) dating have led to the discovery of distinctive Lower Ordovicia...
New U–Pb zircon ages from volcanic, plutonic, and sedimentary units in the Avalonian Caledonia terra...
The volcanic succession of the Fountain Lake Group of the northern Chignecto peninsula consists of b...
Silurian–Devonian bimodal volcanism—a common feature of the northern Appalachians of the northeaster...
Near Cheticamp, northwestern Cape Breton Island, a sequence of supracrustal rocks overlies and cuts ...
The southeastern Cape Breton Highlands are composed of an eastern belt of predominantly granitoid ro...