Results 51 to 60 of about 18,588 (223)

Interdisciplinary studies of the Cis-Ural Neolithic (Upper Kama basin, Lake Chashkinskoe): Palaeoecological aspects

Documenta Praehistorica, 2013
In this paper we present preliminary results of the first palaeoecological investigations in the Cis-Ural region. This was an area of intensive Neolithic occupation of fluvial landscapes within the basin of the Upper Kama River, the largest river in the
Evgeniia Lychagina, Nataliya Zaretskaya, Alexey Chernov, Elena Lapteva   +3 more
doaj   +1 more source

Morphostratigraphy of the Sázava river terraces in the Bohemian Massif

Acta Universitatis Carolinae Geographica, 2021
The results of geomorphological research into the Sazava river terraces are presented. This terrace system is characteristic by its variable structure which is conditioned by specific hydrodynamic processes that existed during the late Cenozoic evolution
Břetislav Balatka, Philip Gibbard, Jan Kalvoda   +2 more
doaj   +1 more source

Characteristics of direct human impacts on the rivers Karun and Dez in lowland south-west Iran and their interactions with earth surface movements [PDF]

, 2015
Two of the primary external factors influencing the variability of major river systems, over river reach scales, are human activities and tectonics.
Frostick, Lynne E., Heyvaert, Vanessa M. A., Heyvaert, Vanessa M.A., Parsons, Daniel R., Walstra, Jan, Woodbridge, Karl, Woodbridge, Kevin P.   +6 more
core   +1 more source

An ultraviolet–visible spectroscopy system for studying real‐time pressure effects on enzyme activity

Limnology and Oceanography: Methods, EarlyView.
Abstract Investigations of hydrostatic pressure effects on microbial enzymatic processing are challenging but critical for understanding element cycling in the world's oceans. In this study, we developed and tested a stainless‐steel pressure cell capable of withstanding up to 110 MPa of hydrostatic pressure (equivalent to ~ 11,000 m depth), featuring ...
Maria Papadimitraki, Urban Wünsch, John Paul Balmonte, Mathias Middelboe, Colin A. Stedmon, Karl M. Attard, Ronnie N. Glud   +6 more
wiley   +1 more source

Terrace formation linked to outburst floods at the Diexi palaeo-landslide dam, upper Minjiang River, eastern Tibetan Plateau [PDF]

Earth Surface Dynamics
River terraces are frequently investigated with the aim of extracting information regarding tectonic or climate forcing on the evolution of landscapes.
J. Li, J. D. Jansen, X. Fan, Z. Ding, S. Kang, M. Lovati   +5 more
doaj   +1 more source

Geomorphology of the northwestern Kurdistan Region of Iraq: landscapes of the Zagros Mountains drained by the Tigris and Great Zab Rivers

Journal of Maps, 2021
We present the geomorphological map of the northwestern part of the Kurdistan Region of Iraq, where the landscape expresses the tectonic activity associated with the Arabia-Eurasia convergence and Neogene climate change.
Luca Forti, Alessandro Perego, Filippo Brandolini, Guido S. Mariani, Mjahid Zebari, Kathleen Nicoll, Eleonora Regattieri, Cecilia Conati Barbaro, Daniele Morandi Bonacossi, Hasan Ahmed Qasim, Mauro Cremaschi, Andrea Zerboni   +11 more
doaj   +1 more source

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Wawrzyniak Tomasz, Oryński Szymon, Marciniak Artur, Osuch Marzena   +3 more
wiley   +1 more source

Anatomy and origin of authochthonous late Pleistocene forced regression deposits, east Coromandel inner shelf, New Zealand: implications for the development and definition of the regressive systems tract [PDF]

, 2004
High-resolution seismic reflection data from the east Coromandel coast, New Zealand, provide details of the sequence stratigraphy beneath an autochthonous, wave dominated inner shelf margin during the late Quaternary (0-140 ka). Since c.
Bard E., Bard E., Bond G., Bradshaw B. E., Bradshaw B. E., Browne G. H., Chappell J., Chiocci F. L., Dansgaard W., Davis R. A., Emery D., Hart B. S., Haywick D. W., Hernández‐Molina F. J., Hunt D., Hunt D., Kitamura A., Kolla V., Kolla V., Marks G. P., Marshall J. F., Martinson D. G., Mellere D., Mitchum R. M., Morton R. A., Naish T., Nummedal D., Plint A. G., Plint A. G., Plint A. G., Plint A. G., Pomar L., Posamentier H. W., Posamentier H. W., Posamentier H. W., Roy P. S., Roy P. S., Saul G., Schofield J. C., Shackleton N. J., Tesson M. R., Thom B. G., Thom B. G., Thom B. G., Thrasher G. P., Trincardi F., Vail P. R., Van Wagoner J. C., Van Wagoner J. C., Wright I. C., Wright I. C.   +50 more
core   +2 more sources

INCEPTIVE TOPOGRAPHY OF FLUVIAL-DOMINATED RIVER MOUTH TERRACES: EXPERIMENTS

Doboku Gakkai Ronbunshu, 2003
河川流が卓越する河口部を対象に模型実験を行い, 河口噴流における流速および浮遊砂濃度の分布構造, 掃流砂および浮遊砂による河口テラスの初期形成機構を明らかにした. また著者らの一部が提案した理論の妥当性を検証した結果, 理論と実験結果には良好な一致が認められ, 浮遊砂が支配的な場合, 噴流軸の両側に堆積が生じることが実験によっても示された. さらに河口テラスからデルタへの発達過程に関する実験を行い, 浮遊砂が支配的な場合, 掃流砂が支配的な場合とは明らかに異なる, 鳥趾状デルタに近い堆積形状へと発達することが示された.
Norihiro IZUMI, Hitoshi TANAKA, Kousuke TSUBOI, Masanao DATE   +3 more
openaire   +2 more sources

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

River Research and Applications, EarlyView.
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