Results 131 to 140 of about 16,668 (258)

Mineralogy and Formation of a Platinum Placer Deposit, Southern South Island, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Placer platinum group minerals (PGM), with subordinate detrital gold, have been concentrated in Pleistocene coastal sands near the present Foveaux Strait shoreline. This study characterises the PGM in what is New Zealand's only identified PGM deposit.
Marshall Palmer, Dave Craw
wiley   +1 more source

Dust Deposition and Loess Accretion in New Zealand's South Island: Examining Links between Cold‐Climate Processes and Dust Production

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
We compared temporal variability in dust and loess accretion in New Zealand's South Island with glacial activity in the central Southern Alps, considered the main mechanism of silt production, in (i) a proximal loess deposit at Barrhill, Rakaia River and (ii) a distal dust record from a peat mire in Central Otago.
Samuel K. Marx, Jan‐Hendrik May, Felix Lauer   +2 more
wiley   +1 more source

Rangitīkei River Terraces Formed During the Otira Glaciation: Lithostratigraphic Type Sections, Review and Conceptual Model

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The Rangitīkei Valley in the lower North Island of New Zealand contains flights of river terraces that are influenced by changes in sediment supply, stream power and base level associated with Quaternary climate events over the last ∼350 thousand years.
Callum Rees, Alan Palmer, Utiku Potaka
wiley   +1 more source

Hyperspectral optical signatures of iron‐limitation in a coastal upwelling system

Limnology and Oceanography, Volume 71, Issue 3, March 2026.
Abstract Iron‐limitation within the California Current System drives changes in phytoplankton taxonomic composition and photo‐physiology over a range of spatial scales. Here we demonstrate how these iron‐dependent signatures can be resolved, with high spatial resolution, using continuous ship‐board optical measurements.
Sacchidanandan V. Pillai, Yayla Sezginer, Adrian Marchetti, Claire P. Till, Emily V. Speciale, Philippe D. Tortell   +5 more
wiley   +1 more source

Associating Local‐Scale Physical Habitat Assemblages With Reach‐Scale Stream Hydrogeomorphological Types in Mountain Headwater Catchments

River Research and Applications, Volume 42, Issue 3, Page 527-546, March 2026.
ABSTRACT Building an understanding of river ecosystems often involves integrating information from different locations, spatial scales and points in time. Geomorphologists and ecologists have long considered ways to explore river ecosystems at different, hierarchical, spatial scales so that features observed locally can be linked to the character of ...
Edward J. Cox, Angela M. Gurnell, Michael J. Bowes, Michael Bruen, Sinead Hogan, John J. O'Sullivan, Mary Kelly‐Quinn   +6 more
wiley   +1 more source

Ghana airborne geophysics project in the Volta and Keta Basin : BGS final report [PDF]

, 2009
This report describes the work undertaken by BGS between November 2006 and March 2009 in collaboration with Fugro Airborne Surveys Pty Ltd on an airborne geophysical survey and ground reconnaissance mapping of the Volta River and Keta Basins, Ghana ...
Carney, J.N., Jordan, C.J., McDonnell, P., Thomas, C.W.   +3 more
core  

Long‐Term Effects of Low‐Drop Grade Control Structures on Channel Evolution in the Yazoo River Basin

River Research and Applications, Volume 42, Issue 3, Page 594-606, March 2026.
ABSTRACT Channel incision is a widespread problem, especially in river basins that have an extensive history of channel alterations. Because channel incision causes large ecological and economic consequences, the prevention of continued migration of headcuts, defined as a steep change in stream gradient over a short reach, has been the focus of many ...
Nicky M. Faucheux, W. Todd Slack, Leandro E. Miranda   +2 more
wiley   +1 more source

Planning, Implementing, and Evaluating Stage 0 and Valley Bottom Restoration Projects: A Review With Lessons From the Grande Ronde Basin, USA

WIREs Water, Volume 13, Issue 2, March/April 2026.
Successful valley bottom restoration requires an understanding of current and historical conditions determining whether a reach can currently support a multi‐thread or meandering channel, an understanding of reference conditions to assist with design, clear objectives to evaluate design alternatives, and post‐project monitoring of success using a ...
Philip Roni, Meghan J. Camp, Reid Camp, Tyler Rockhill, Michael Briggs, Sean Welch, Jesse Steele   +6 more
wiley   +1 more source

Chronological Study of Fluvial Terraces along the Jusu River, Eastern Korea

Kikan Chirigaku, 1993
A series of fluvial terraces is well developed along the Jusu River flowing into the eastern side of the Taebaek Mts., Korea. Among these terraces, the development of the most well-preserved lower terraces were examined in connection with the climatic and sea-level changes since Last Interglacial by an investigation into the deposits and longitudinal ...
openaire   +2 more sources

Floodplain Conservation Versus Landscape Development—How to Tackle the Multifunctional Management Issue

WIREs Water, Volume 13, Issue 2, March/April 2026.
The ability to perform a number of ecosystem functions is degraded by the inappropriate damming of agricultural floodplains (by levee construction) or by the continuous urban expansion, where flood protection is justified but at the cost of affecting the environmental stability of the wider landscape.
Jiří Jakubínský, Marcela Prokopová, Barbara Stammel, Ján Babej, Nejc Bezak, Florian Borgwardt, Martina Bussettini, Carlo Camporeale, Pavel Cudlín, Sabine Fink, Anna Kidová, Guillermo Palau‐Salvador, Vilém Pechanec, Kristina Potočki, Carles Sanchis‐Ibor, Lenka Štěrbová, Renata Včeláková, Paolo Vezza   +17 more
wiley   +1 more source