全部文献期刊会议图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Sandra M. Barr , Chris E. White
来源:[J].Tectonophysics(IF 2.684), 2018
摘要:Abstract(#br)Geologically diverse fault-bounded crustal slices form the present-day southern margin of Ganderia in southern New Brunswick. One such slice, the Pocologan metamorphic suite (PMS), was previously shown to contain high-pressure metamorphic rocks and interpreted a...
作者:Sandra M. Barr , Jana M. Horák ...
来源:[J].Gondwana Research(IF 7.396), 2016, Vol.35, pp.257-271
摘要:Abstract(#br)Inliers of late Neoproterozoic basement rocks exposed in southern Great Britain, described in summary herein, have been previously attributed to a series of terranes bounded by major crustal lineaments that form a dissected remnant of a single subduction complex...
作者:Sandra M. Barr , Chris E. White ...
来源:[J].Precambrian Research(IF 4.441), 2014, Vol.246, pp.358-370
摘要:Abstract(#br)The Brookville terrane in southern New Brunswick contains some of the oldest known sedimentary rocks of the Ganderian microcontinent of the northern Appalachian orogen. It includes the stromatolitic metacarbonate- and quartzite-dominated Ashburn Formation and me...
作者:Sandra M. Barr , James K. Mortensen ...
来源:[J].LITHOS(IF 3.779), 2011, Vol.126 (3), pp.455-465
摘要:Abstract(#br)Cashes Ledge igneous suite in the central Gulf of Maine is represented by 10 granitic and two felsic tuff samples collected from bedrock outcrops using the submersible Alvin in 1971–1972 and archived at the Woods Hole Oceanographic Institute. Laser ablation ICP-...
作者:... Sören Jensen , Sandra M. Barr , Chris E. White
来源:[J].Palaeogeography, Palaeoclimatology, Palaeoecology(IF 2.745), 2008, Vol.273 (1), pp.123-141
摘要:Abstract(#br)We present here the results of a pilot study on Cambrian acritarchs from Cape Breton Island, Nova Scotia, based on a material from the MacLean Brook Formation in the Mira River Valley. An assemblage from the base of the formation contains 8 species including Eli...
作者:... Simon E. Jackson , Nicholas G. Culshaw , Sandra M. Barr
来源:[J].Precambrian Research(IF 4.441), 2001, Vol.105 (2), pp.331-356
摘要:Abstract(#br)The Paleoproterozoic Lower Aillik Group is a deformed metasedimentary–metavolcanic succession located in the Makkovik Province of Labrador, eastern Canada. The group is situated near the boundary between reworked Archaean gneiss of the Nain (North Atlantic) crat...
作者:SANDRA M. BARR , CHRIS E. WHITE
来源:[J].Geological Magazine(IF 2.27), 2016, Vol.154 (3), pp.571-590
摘要:Abstract Diverse and well-preserved acritarchs are reported from the type section of the Cambrian Hanford Brook Formation at Hanford Brook, southern New Brunswick. This section fills an important gap in acritarch studies by providing the first detailed picture of changing ac...
作者:SANDRA M. BARR , JOHANNES GLODNY ...
来源:[J].Geological Magazine(IF 2.27), 2014, Vol.152 (5), pp.767-787
摘要:Abstract 40Ar/39Ar in situ UV laser ablation of white mica, Rb–Sr mineral isochrons and zircon fission track dating were applied to determine ages of very low- to low-grade metamorphic processes at 3.5±0.4 kbar, 280±30°C in the Avalonian Mira terra...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×