Results 71 to 80 of about 65,602 (237)
Journal of Quaternary Science, EarlyView.ABSTRACT The sediment signature of glacial erosion products exported from Hudson Strait to the Labrador Sea during Hudson Strait Heinrich (HS‐H) events is evaluated using four distinct proxies: paired δ18Ο and δ13C data on the carbonate fraction, εNd and U–Pb isotopes in the silicate fraction, the mineral composition of the <2 mm bulk sediment fraction,
John T. Andrews +3 more
wiley +1 more source
A mineral reconnaissance survey of the Abington-Biggar-Moffat-area, south-central Scotland [PDF]
, 1979 Panned heavy mineral concentrates, mostly obtained from stream sediments, were collected from 195 sites in the Abington-Biggar-Moffat area. The project area, which lies immediately east of the formerly important mining district of Wanlockhead ...
Dawson, J., Floyd, J.D., Phillip, P.R.
core
Deformation in Moffat Shale detachment zones in the western part of the Scottish Southern Uplands [PDF]
, 2004 A study of the décollement zones in the Moffat Shale Group in the Ordovician Northern Belt of the Southern Uplands of Scotland reveals a progressive sequence of deformation and increased channelization of fluid flow.
Needham, D.T.
core +1 more source
Boreas, EarlyView.Crater lakes in core regions of former ice sheets have the potential to preserve long‐term sedimentary archives that are otherwise rare in glaciated landscapes due to pervasive glacial erosion. Lake Wiyâshâkimî, an impact crater lake located in the inner core of the Québec‐Labrador Dome of the Laurentide Ice Sheet, provides a rare example of such a ...
Etienne Brouard, Patrick Lajeunesse
wiley +1 more source
Geo-structural map of the Laguna Blanca basin (Southern Central Andes, Catamarca, Argentina) [PDF]
, 2015 The Laguna Blanca basin is a rhomb-shaped basin located at the SE margin of the Puna plateau in the southern Central Andes (Catamarca, Argentina). An interactive analysis using remote sensing and field mapping enabled us to produce a geo-structural map ...
Massironi, Matteo +2 more
core +2 more sources
The FEBS Journal, EarlyView.Phylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Elena Aledo +3 more
wiley +1 more source
A black shale protolith for gold-tellurium mineralisation in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland [PDF]
, 2017 The Dalradian Supergroup of Britain and Ireland is mineralised by gold-tellurium vein deposits. The host succession includes carbonaceous, pyritic shales (pelites) which were a source of trace elements, including gold and tellurium.
Armstrong, J. +5 more
core +1 more source
Groundwater, EarlyView.Abstract We propose that a new term, aquitardifer, be added to the hydrogeologic nomenclature. Aquitardifer, a blend of the terms aquitard and aquifer, accounts for geologic materials that have properties of both as traditionally defined. Several examples of aquitardifers are provided, as is justification for and applicability of the term.
Anthony C. Runkel, Jessica R. Meyer
wiley +1 more source
Middle Darriwilian conodont zones in the uppermost San Juan limestone and the lower member of the Las Aguaditas formation, central Precordillera of San Juan, Argentina [PDF]
, 2013 The geological province of Precordillera is located in western Argentina. It extends 450 km meridionally and 110 km from east to west (Fig. 1) (Furque and Cuerda, 1979).
Albanesi, Guillermo Luis +2 more
core
Optimal aquifers and reservoirs for CCS and EOR in the Kingdom of Saudi Arabia : An overview [PDF]
, 2016 Peer reviewedPublisher ...
Jaju, M. M. +3 more
core +5 more sources