Results 91 to 100 of about 16,595 (224)

Aeolian and Biogeochemical Transformations of Detrital Gold Morphology in the Pool Burn Basin, Central Otago, New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The Pool Burn basin is a tectonic depression that became almost isolated from the regional drainage system by river reorientation during Pleistocene uplift of surrounding ridges. Consequently, detrital gold in the basin was largely locally derived, from supergene zones on orogenic deposits and recycled from paleoplacers in erosional remnants of Miocene
Marshall Palmer, Dave Craw
wiley   +1 more source

Geomorphology of Tafi valley (Tucumán Province, Northwest Argentina)

open access: yesJournal of Maps, 2019
Tafí valley is an elongated tectonic basin of about 450 km2 located in NW Argentina in a mountainous frame of metamorphic and granitic Precambrian-Paleozoic rocks belonging to Sierras Pampeanas. This study presents the first detailed geomorphological map
María Marta Sampietro-Vattuone   +1 more
doaj   +1 more source

New evidence on palaeoenvironmental conditions in SW Cameroon since the Late Pleistocene derived from alluvial sediments of the Ntem River [PDF]

open access: yes, 2010
An interior delta in the lower course of the Ntem River near the sub-prefecture Ma’an was identified after interpretation of satellite images, topographical maps of SW Cameroon and geological as well as hydrological references and a reconnaissance ...
Sangen, Mark
core  

Stratigraphy of Fluvial Terraces in the North Uonuma Hill, Niigata Prefecture

open access: yesJournal of the Japan Society of Engineering Geology, 2006
現在, われわれは2004年新潟県中越地震震源地付近の第四紀後期の地殻変動について検討を進めている. 本稿では, 魚沼丘陵北部に分布する河成段丘層序の調査結果を速報し, さらに, 魚沼丘陵東縁の六日町盆地西縁断層の活動性に触れる. 調査地域に分布する河成段丘は, 空中写真判読調査により, 高位より, Hf, Mf, Lf面に区分される. さらに, Hf面はHf 1~3面に, Lf面は, Lf1~4面に細分される. 続いて, 火山灰層序に基づいてこれらの編年を行った. Hf 3面は海洋酸素同位体ステージ (MIS) 6よりも古く, MIS 8に対比される可能性がある. Mf面はMIS 6に対比される可能性が高い.
Ryuta HATAYA   +4 more
openaire   +2 more sources

Newly Discovered Active Faults in the Wairarapa Valley: Implications for Multi‐Fault Rupture and Kinematics in the Southern North Island, Aotearoa New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Active fault locations and constraints on the timing and size of earthquakes are important for understanding and mitigating seismic hazard in Aotearoa New Zealand. However, historical and instrumental records are too short to provide these data on most earthquake‐generating faults. Light detection and ranging (lidar) data provide us with the ability to
Genevieve L. Coffey   +4 more
wiley   +1 more source

Fluvial terrace formation in mountainous areas: (1) Influence of climate changes during the last glacial cycle in Albania

open access: yesComptes Rendus. Géoscience
This work analyses terraces formation from the case of Albanian rivers. An allostratigraphy study of the fluvial terraces is combined with new numerical dating.
Guzmán, Oswaldo   +5 more
doaj   +1 more source

Terrace springs: habitat haven for macrobenthic fauna in the lower plain of the River Ticino (Lombardy, Northern Italy)

open access: yesNatural History Sciences, 2018
Springs are important environments between hypogean and epigean habitats; the interaction between aquatic and terrestrial ecosystems is an important factor for their biotic communities.
Renato Sconfietti   +2 more
doaj   +1 more source

OSL Characterisation of Two Fluvial Sequences of the River Usmacinta in its Middle Catchment (SE Mexico) [PDF]

open access: yes, 2014
The report summarizes luminescence profiling, initially using a SUERC PPSL system in Mexico, and laboratory analysis at SUERC, used to characterise the stratigraphy and interpret sedimentary processes in terrace deposits of the Usumacinta River, SE ...
Castillo Rodriguez, Miguel   +4 more
core  

Sedimentary records of palaeohydrological variability during the Late Holocene in the Lower Narmada Basin, western India

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Late Holocene palaeohydrological changes in the lower Narmada Basin, India, revealed using multiproxy analyses of the Orsang River terrace sediments. Distinct depositional phases corresponding to global climatic events were recorded. High‐magnitude floods in the Narmada River during the MWP, and within the tributary Orsang River during DACP and LIA ...
Alpa Sridhar   +9 more
wiley   +1 more source

Soil genesis in a marine terrace sequence of Sicily, Italy

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Knowledge about the rates of pedogenic processes is essential to understand landscape development and history. It can be attained by the quantitative investigation of soil chronosequences.
Stephen Wagner   +3 more
doaj  

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