Results 51 to 60 of about 54,438 (291)

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

A case of compatibility between quarrying of ornamental granite and forest exploitation [PDF]

Acta Montanistica Slovaca, 2012
A particular development is proposed to mine some good quality outcrops of granite found in a forest exploitation of eucalypts.The exploitation has been designed with a quarrying method, in which small open cast pits are opened and quarried sequentially ...
Iván Gómez Márquez, Leandro R. Alejano, Alfonso Rodríguez Dono, Fernando García Bastante   +3 more
doaj  

Ways of improving blasting methods of dimensional stone quarrying in intensively fractured rock mass

Горные науки и технологии, 2018
The findings of the review of available information on geological conditions of the Drugoretskoye gabbro-diabase deposit are presented. Special attention is paid to the characteristics of fracture sets, since it is this factor that largely determines the
Aleksandr V. Kovalev
doaj   +1 more source

The internal crest anatomy of Lambeosaurini (Hadrosauridae: Lambeosaurinae)

The Anatomical Record, EarlyView.
Abstract The supracranial crests of lambeosaurine hadrosaurids have long been a focus of study due primarily to their extreme morphology. The external anatomy of lambeosaurine crests is understood to be highly variable between species, but variation in their internal anatomy is less well understood.
Thomas W. Dudgeon, Courtney Brown, David C. Evans   +2 more
wiley   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

The Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham, Stephan N. F. Spiekman, Susannah C. R. Maidment, Paul Upchurch, Philip D. Mannion   +4 more
wiley   +1 more source

CONTROL OF FRAGMENTATION BY BLASTING

Rudarsko-geološko-naftni Zbornik, 1998
The degree of fragmentation influences the economy of the excavation operations. Characteristics of blasted rock such as fragment size, volume and mass are fundamental variables effecting the economics of a mining operation and are in effect the basis ...
Branko Božić
doaj  

Risks, challenges and socioeconomic impacts of quarrying on rural livelihoods in Tanzania

Cogent Social Sciences
Quarrying serves as both a lifeline and a challenge for rural communities in Tanzania, where livelihoods depend on extracting stone amidst environmental and economic hardships.
Felician Andrew Kitole, Venance Ephraim Kalumanga, Dennis Werner Hyera, Erick Mchuma Evason   +3 more
doaj   +1 more source

Under the Shade of a Coolabah Tree: A Second Cache of Tulas From the Boulia District, Western Queensland

Archaeology in Oceania, EarlyView.
ABSTRACT This paper reports on the excavation of a cache of stone artefacts, buried on the bank of a waterhole or ‘billabong’ in central western Queensland. This is an extremely rare find, and yet it is the second such site to be reported within less than a 10 km radius.
Yinika L. Perston, Lynley A. Wallis, Heather Burke, Lorna Bogdanek, Trevina Rogers, Justine Kemp   +5 more
wiley   +1 more source

Hiding in Plain Sight: Rethinking the Size and Complexity of Iron Age Hillforts in NW Iberia Thanks to Aerial Archaeology and Geophysics

Archaeological Prospection, EarlyView.
ABSTRACT This paper tackles one key limitation in the analysis of Iron Age communities in the Northwestern Iberian Peninsula: the limited exploration of areas beyond the fortified settlements known as castros (hillforts). The vast majority of archaeological studies have focused exclusively on the areas inside the walls of these settlements, which are ...
César Parcero‐Oubiña, Carlos Otero‐Vilariño, María Gómez‐Faro, Jesús Ignacio Jiménez Chaparro, Pastor Fábrega‐Álvarez, Juan Torrejón‐Valdelomar, Marta Crespo‐Fernández, David González‐Álvarez   +7 more
wiley   +1 more source

Pathways to employment: Subject choice, job requirements, and early employment outcomes for UK undergraduates

British Educational Research Journal, EarlyView.
Abstract Higher education in the United Kingdom has dramatically expanded in recent decades, along with questions about its effectiveness in preparing graduates for the labour market. With rising tuition fees and increasing competition for graduate jobs, many students opt to study ‘professional’ subjects—fields closely tied to specific professions ...
Sarah Pemberton
wiley   +1 more source