Results 51 to 60 of about 210,162 (311)

Morphometric analyzes of the river basin id Ribeirão da Laje, in the Southwest of Goiás, Brazil

open access: yesGeografia Ensino & Pesquisa, 2019
Due to negative environmental impacts caused by intensive soil use, urban and industrial expansion and to the importance of water resources to the maintenance of several life forms on Earth, data were necessary for the planning and environmental ...
Wellmo dos Santos Alves   +3 more
doaj   +1 more source

Structural geology of the Stanley Head region, western Cornwallis Island, Nunavut

open access: yes, 2002
The geology of the Stanley Head map area is dominated by a previously unrecognized, shallow-level fold and thrust fault that creates the distinctive topography in this area. Three phases of deformation have been documented in the study area: 1) northeast-verging fold and thrust faults, 2) folding associated with a north-south compressional event ...
M Henrichsen, L Kennedy
openaire   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Methodics of computing the results of monitoring the exploratory gallery [PDF]

open access: yesActa Montanistica Slovaca, 2000
At building site of motorway tunnel Višòové-Dubná skala , the priority is given to driving of exploration galley that secures in detail: geologic, engineering geology, hydrogeology and geotechnics research. This research is based on gathering information
Krúpa Víazoslav
doaj  

Evaluation of Groundwater Recharge Estimates in a Partially Metamorphosed Sedimentary Basin in a Tropical Environment: Application of Natural Tracers

open access: yesThe Scientific World Journal, 2014
This study tests the representativeness of groundwater recharge estimates through the chloride mass balance (CMB) method in a tropical environment. The representativeness of recharge estimates using this methodology is tested using evaporation estimates ...
Felix Oteng Mensah   +2 more
doaj   +1 more source

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

The geology of the Strumble Head - Fishguard region, Dyfed, Wales [PDF]

open access: yes, 1979
An investigation was undertaken on the volcanic and volcaniclastic rocks forming the Fishguard Volcanic Group of Lower Ordovician age, which crop out in the Strumble Head - Fishguard area of Southwest Dyfed (North Pembrokeshire).\ud The nature of the lavas and volcaniclastic rocks suggests that this episode of vulcanicity was entirely subaqueous in ...
openaire   +1 more source

Geology of the Brewood area, 1:10000 sheet SJ80NE : part of 1:50000 sheet 153 (Wolverhampton) [PDF]

open access: yes, 1998
This report describes the geology of 1:lO 000 sheet SJ 80 NE (Brewood) which is included in 1 :50 000 Geological Sheet 153 (Wolverhampton) (Figure 1).
Hough, E.
core  

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Application of an improved global-scale groundwater model for water table estimation across New Zealand [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Many studies underline the importance of groundwater assessment at the larger, i.e. global, scale. The groundwater models used for these assessments are dedicated to the global scale and therefore not often applied for studies in smaller areas, e.g ...
R. Westerhoff   +3 more
doaj   +1 more source

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