Results 11 to 20 of about 1,015,874 (269)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+5 more sources

A phytogeographic assessment of the Sierra Madre Oriental physiographic province, Mexico

open access: yesBotan‪ical Sciences, 2022
Background: Different regionalizations have been proposed for the Sierra Madre Oriental (SMOR), but none of them have analyzed its full floristic diversity.
J. Villaseñor, E. Ortiz
semanticscholar   +1 more source

Diversidad de plantas vasculares de la Provincia Fisiográfica de la Sierra Madre Oriental, México.

open access: yesBotan‪ical Sciences, 2021
Antecedentes: La Sierra Madre Oriental es una Provincia Fisiográfica ubicada en el noreste de México con características geológicas, climáticas y edáficas distintivas. La flora de esta región aún no ha sido inventariada en conjunto.
María Magdalena Salinas-Rodríguez   +21 more
semanticscholar   +1 more source

Las plantas vasculares endémicas de la Sierra Madre del Sur, México

open access: yes, 2021
Antecedentes: La Sierra Madre del Sur (SMS) se ubica paralela al Océano Pacífico, desde Jalisco a Oaxaca. Es la provincia más biodiversa de México, con 7,016 especies de plantas vasculares.
Juvenal Aragón-Parada   +5 more
semanticscholar   +1 more source

From Andes to Amazon: Assessing Branched Tetraether Lipids as Tracers for Soil Organic Carbon in the Madre de Dios River System

open access: yesJournal of Geophysical Research: Biogeosciences, 2020
We investigate the implications of upstream processes and hydrological seasonality on the transfer of soil organic carbon (OC) from the Andes mountains to the Amazon lowlands by the Madre de Dios River (Peru), using branched glycerol dialkyl glycerol ...
F. Kirkels   +5 more
semanticscholar   +1 more source

Preliminary Assessment of Microbial Community Structure of Wind-Tidal Flats in the Laguna Madre, Texas, USA

open access: yesBiology, 2020
Aside from two samples collected nearly 50 years ago, little is known about the microbial composition of wind tidal flats in the hypersaline Laguna Madre, Texas. These mats account for ~42% of the lagoon’s area.
I. Huang   +6 more
semanticscholar   +1 more source

Deforestation Due to Artisanal and Small-Scale Gold Mining Exacerbates Soil and Mercury Mobilization in Madre de Dios, Peru.

open access: yesEnvironmental Science and Technology, 2019
Artisanal and small-scale gold mining (ASGM) is a significant contributor of mercury (Hg) contamination and deforestation across the globe. In the Colorado River watershed in Madre de Dios, Peru, mining and deforestation have increased exponentially ...
Sarah E Diringer   +7 more
semanticscholar   +1 more source

Brown Tide Symposium and Workshop : 15-16 July 1991 [PDF]

open access: yes, 1991
The 'brown tide' bloom of an aberrant Chrysophyte sp. phytoplankter occurred for more than 18 months and extended into both upper (cover map) and lower Laguna Madre, Texas.
Brown Tide Symposium and Workshop (1991 : University of Texas at Austin Marine Science Institute)   +2 more
core   +1 more source

Mercury Contamination in Riverine Sediments and Fish Associated with Artisanal and Small-Scale Gold Mining in Madre de Dios, Peru

open access: yesInternational Journal of Environmental Research and Public Health, 2018
Artisanal and small-scale gold mining (ASGM) in Madre de Dios, Peru, continues to expand rapidly, raising concerns about increases in loading of mercury (Hg) to the environment.
Gerardo Martinez   +7 more
semanticscholar   +1 more source

“¡Tu madre está en la lucha!” La dimensión de género en la búsqueda de desaparecidos en Nuevo León, México

open access: yes, 2020
Las Fuerzas Unidas por Nuestros Desaparecidos(as) en Nuevo Leon (FUNDENL) son un grupo de madres y es- posas de personas desaparecidas que desde 2012 se organizan de forma autonoma para encontrar a sus familiares, continuando el legado de otras mujeres ...
Nadejda Iliná
semanticscholar   +1 more source

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