Results 111 to 120 of about 1,034,817 (235)

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

open access: yesSedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder   +2 more
wiley   +1 more source

Zebina unamae Rolán, 1998 [PDF]

open access: yes, 1998
Catálogo do Museo de Historia Natural USC. n.
Rolán Mosquera, Emilio
core  

Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Stuart Umbo   +11 more
wiley   +1 more source

Ammonicera oteroi Rolán, 1991 [PDF]

open access: yes, 1991
Catálogo do Museo de Historia Natural USC. n.
Rolán Mosquera, Emilio
core  

Governance Arrangements That Fit Social‐Ecological Context Are Associated With Fishery Sustainability

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 381-399, March 2026.
ABSTRACT In many parts of the world, natural resources are primarily managed by governance arrangements at the local level. Those arrangements range from collective, such as cooperatives and associations, to individualistic, such as patrons and owner‐operators.
Mateja Nenadović   +25 more
wiley   +1 more source

Dinosaurios argentinos y brasileros: lista de especies válidas / DINOSSAUROS ARGENTINOS E BRASILEIROS: LISTA TAXONÔMICA DE ESPÉCIES VÁLIDAS

open access: yesCaminhos de Geografia, 2010
En ésta contribución se analizan los cambios en el número de especies de dinosaurios no-avianos publicadas y actualmente válidas de Argentina y Brasil desde la última década del siglo XIX hasta el presente.
Agustin Guillermo Martinelli   +2 more
doaj  

Conus salreiensis Rolán, 1980 [PDF]

open access: yes, 1980
Catálogo do Museo de Historia Natural USC. n.
Rolán Mosquera, Emilio
core  

Desarrollo, causas remotas e historia natural

open access: yesPrincipia: an international journal of epistemology, 2009
Having as starting point that a proximal cause is one which effects can be registered in the states of an individual organism, in this work I will argue that what defines an ultimate cause is the fact that its effects can be registered in the evolution of lineages, and not simply in population states.
openaire   +5 more sources

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