Results 91 to 100 of about 18,181 (272)

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

open access: yes, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim   +8 more
core   +2 more sources

The Petrogenesis and Geochemistry of Tabas Black Land volcanic field: implications for volcanic activity along the Nayband fault, East Iran

open access: yesVolcanica, 2019
The Tabas Black Land volcanic field (14 Ma) is on the major right lateral Nayband fault, on the Lut Block, Iran. It has a central area of eroded ventd, surrounded by lavas. Lavas are tilted and folded on the east by the Nayband fault.
Esmail Elahpour   +5 more
doaj   +1 more source

Zircon U-Pb dating of Mesozoic volcanic and tectonic events in northwest Palmer Land and southwest Graham Land, Antarctica [PDF]

open access: yes, 2009
New whole rock Rb-Sr and zircon U-Pb geochronological data and Sm-Nd isotopic data are presented from the central magmatic arc domain of the Antarctic Peninsula in the area of northwest Palmer Land and southwest Graham Land, Rb-Sr isochrons indicate an ...
Flowerdew, Michael   +5 more
core   +1 more source

The development of magmatism along the Cameroon Volcanic Line: Evidence from teleseismic receiver functions

open access: yes, 2012
[1] The Cameroon Volcanic Line (CVL) in West Africa is a chain of Cenozoic volcanism with no clear age progression. The reasons for its existence are unclear, and the nature of its magmatic plumbing system is poorly understood.
Bastow, I.D., Gallacher, R.J.
core   +1 more source

Pressure, temperature and time constraints on tectonic models for southwestern Sweden [PDF]

open access: yes, 2010
In this work, a number of key localities have been investigated in detail in order to provide precise constraints on models for the tectonic evolution of southern Sweden.
Austin Hegardt, Eric
core   +1 more source

Tectonic evolution of the Dom Feliciano Belt in Southern Brazil : geological relationships and U-Pb geochronology [PDF]

open access: yes, 2016
O Cinturão Dom Feliciano, que se estende desde o leste do Uruguai até o sul do Brasil, representa um importante orógeno Neoproterozoico formado pela colagem de domínios oceânicos e fragmentos continentais entre os crátons Rio de La Plata, Congo e ...
Chemale Jr, Farid   +2 more
core   +2 more sources

U–Pb zircon geochronology, petrochemical and Sr–Nd isotopic characteristic of Late Neoproterozoic granitoids of the Bornaward complex (Bardaskan-NE Iran) [PDF]

open access: yes, 2014
The Bornaward granitoids in the Taknar zone are located in the northeast of the central Iranian block in northeast Iran (Khorasan Razavi province), about 280 km southwest of Mashhad city and 28 km northwest of Bardaskan city.
Heidarian Shahri, M. R.   +6 more
core   +1 more source

1.88 Ga granitoids at Sorsakoski, Central Finland: A-type magmatism within the Raahe-Ladoga suture zone [PDF]

open access: yesBulletin of the Geological Society of Finland
Four quartz monzonite – granite intrusions forming the Sorsakoski granite lithodeme, are found within the Raahe-Ladoga suture zone in Central Finland. The prevailing potassium feldspar megacrystic quartz monzonites and granites form a bimodal association
Perttu Mikkola   +3 more
doaj   +1 more source

Palaeoproterozoic rift-related alkaline magmatism in Bari area, Son valley, Central India

open access: yesGeosystems and Geoenvironment
Earlier studies on Palaeoproterozoic (∼1800 Ma) alkaline (shoshonitic) rocks comprised of limited petrochemical data on the Bari syenite and other contiguous felsic rocks emplaced in anorogenic rift setting along the Son-Narmada North Fault (SNNF). Using
G. Mageswarii   +5 more
doaj   +1 more source

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