Article
Geochemistry & Geophysics
Sarah Falkowski, Todd A. Ehlers, Nadine Mcquarrie, Chloe O. Glover, Nicholas D. Perez, Victoria M. Buford Parks
Summary: This study examines the impacts of tectonics and climate change on mountain topography in southern Peru using various dating methods. The results reveal that climate change played a significant role in canyon incision over the past 4-3 million years, while ongoing structural processes also contributed to the observed exhumation magnitude.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Qiaohong Sun, Xuebin Zhang, Francis Zwiers, Seth Westra, Lisa Alexander
Summary: This paper provides an updated analysis of observed changes in extreme precipitation using high-quality station data up to 2018. The study finds that extreme precipitation has increased at about two-thirds of stations, and there are statistically significant connections between extreme precipitation and temperature. The detectability of extreme precipitation intensification has increased over time, likely due to the use of longer records.
JOURNAL OF CLIMATE
(2021)
Article
Multidisciplinary Sciences
Hong Ao, Eelco J. Rohling, Ran Zhang, Andrew P. Roberts, Ann E. Holbourn, Jean-Baptiste Ladant, Guillaume Dupont-Nivet, Wolfgang Kuhnt, Peng Zhang, Feng Wu, Mark J. Dekkers, Qingsong Liu, Zhonghui Liu, Yong Xu, Christopher J. Poulsen, Alexis Licht, Qiang Sun, John C. H. Chiang, Xiaodong Liu, Guoxiong Wu, Chao Ma, Weijian Zhou, Zhangdong Jin, Xinxia Li, Xinzhou Li, Xianzhe Peng, Xiaoke Qiang, Zhisheng An
Summary: Our research suggests that the warming during the Miocene-Pliocene boundary increased summer monsoon moisture transport over East Asia, while also leading to aridification in Central Asia through increased evaporation. Additionally, high-resolution monsoon records indicate a dynamic response to eccentricity modulation of solar insolation with periodicities of around 405,000 years and approximately 100,000 years between 8.1 and 3.4 million years ago.
NATURE COMMUNICATIONS
(2021)
Article
Geochemistry & Geophysics
Barbara Carrapa, Peter G. DeCelles, Mihai N. Ducea, Gilby Jepson, Arthur Osakwe, Elizabeth Balgord, Andrea L. Stevens Goddard, Laura A. Giambiagi
Summary: This study applies a geochemical proxy approach to estimate the paleo-crustal thickness of the Andes near Cerro Aconcagua, revealing the importance of Miocene shortening in crustal thickening.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Environmental Sciences
Ikechukwu Kalu, Christopher E. Ndehedehe, Onuwa Okwuashi, Aniekan E. Eyoh
Summary: The study used satellite observations to explore hydrological patterns in the South Central African region, finding consistency between precipitation and terrestrial water storage in the Congo and Orange River basins. However, consistent loss in freshwater was observed in the Zambezi and Okavango basins.
Article
Ecology
Maria Jose Sanin, Fabian Gregorio Mejia-Franco, Margot Paris, Wendy A. Valencia-Montoya, Nicolas Salamin, Michael Kessler, Ingrid Olivares, Juan Sebastian Jaramillo, Agustin Cardona
Summary: This study examines the genetic structure and variation of a palm species complex living in the cloud forests of the Colombian Andes. The results suggest that the genetic groups within the species complex reflect historical processes such as uplift-based isolation, dispersal events, and climate fluctuations. The presence of phylogeographic breaks coinciding with Pliocene strike-slip faulting events indicates the role of topographic disruption in the divergence of this species complex.
JOURNAL OF BIOGEOGRAPHY
(2022)
Article
Geochemistry & Geophysics
Peter G. DeCelles, Barbara Carrapa
Summary: The Central Andean and Himalayan orogenic belts provide a natural experiment to test the role of climate in controlling orogeny. Despite the Himalaya experiencing more tectonic shortening, the Central Andes have a larger orogenic wedge due to the greater erosion rates in the Himalaya. This is attributed to the greater intensity of the Indian Monsoon compared to the South American Monsoon since the Oligocene.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Environmental Sciences
Jihad Rahmouna, Nadia Barhoun, Ahmed Rachid, Soukaina Targhi, Hannane Bahaj, Naima Berry, Mohamed Zakaria Yousfi
Summary: Biostratigraphic and paleoenvironmental analyses were conducted on the Upper Neogene sediments in the Gharb Basin (NW Morocco) to contribute to the reconstruction and evolution of the marine environment during the Upper Miocene-Pliocene. The study identified the succession of eight bioevents and characterized the Upper Tortonian, Messinian, and Zanclean based on planktonic foraminifera. The analysis of benthic foraminifera revealed changes in depositional conditions in terms of bathymetry and oxygen content from the Upper Tortonian to the Pliocene, influenced by tectonic activities, sea-level fluctuations, and climatic variations.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Geography, Physical
Maximilian Lorch, Jens Mutke, Maximilian Weigend, Federico Luebert
Summary: The disjunct distribution of plant clades between the southern and tropical Andes has not been well studied, with the hypothesis being that the global cooling trend in the Miocene and the concomitant aridification of certain regions played a crucial role in shaping this pattern. The climatic niches of these clades have shifted in different directions over time, rejecting the idea of niche conservatism.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Environmental Sciences
Carolin Paul, Ulf Graewe, Anke Kremp
Summary: The spring bloom of phytoplankton in the Baltic Sea is dominated by cold-water adapted dinoflagellates and diatoms. The dynamics of these blooms are influenced by factors such as ice cover, sea surface temperature, and water transport processes. The study found that the abundance of diatoms is correlated with the length of the ice cover period and low winter and spring temperatures, while the dinoflagellate biomass is more independent of these factors. Water transport from adjacent shallow, ice-covered coastal areas contributes to the large blooms in the deep basins.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Weston C. McCool, Brian F. Codding, Kenneth B. Vernon, Kurt M. Wilson, Peter M. Yaworsky, Norbert Marwan, Douglas J. Kennett
Summary: Understanding the impact of climate change and population pressure on human conflict is a significant topic in social sciences. This study combines paleoclimatic and demographic data to analyze the relationship between population growth, resource competition, and violent deaths in the Nasca highland region of Peru.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Blake Stubbins, Andrew L. Leier, David L. Barbeau Jr, Alex Pullen, Jordan T. Abell, Junsheng Nie, Marcelo A. Zarate, Mary Kate Fidler
Summary: Wind-blown dust from southern South America plays a crucial role in connecting different components of Earth's climate system. This study focuses on the Pampas region in central Argentina and reveals the presence of a long-standing fluvial-aeolian system that has been active since the late Miocene. The establishment of aeolian sedimentation in the Pampas coincided with global cooling during the late Miocene, highlighting the role of fluvial transport in the development and maintenance of mid-latitude loess provinces.
NATURE COMMUNICATIONS
(2023)
Article
Geology
Pablo Rodriguez-Salgado, Oriol Oms, Jordi Ibanez-Insa, Pere Anadon, Bruno Gomez de Soler, Gerard Campeny, Jordi Agusti
Summary: The sedimentary record of Camp dels Ninots reflects mineralogical shifts that correlate with orbitally forced climate changes. Intervals with allogenic minerals correspond to wet periods, while those with carbonates correlate with dry periods. This cyclicity is attributed to variations in rainfall leading to different lake conditions.
SEDIMENTARY GEOLOGY
(2021)
Article
Biodiversity Conservation
Yanlong Guan, Hongwei Lu, Yelin Jiang, Peipei Tian, Lihua Qiu, Petri Pellikka, Janne Heiskanen
Summary: This study utilized Shannon's Diversity Index and Simpson's Diversity Index to analyze the changes in global climate heterogeneity and found a significant decrease in global climate heterogeneity, with temperature increase playing a more significant role in reducing it.
ECOLOGICAL INDICATORS
(2021)
Article
Geosciences, Multidisciplinary
Nandini Kar, Lin Li, Victor Carlotto, Carmala N. Garzione, Federico Moreno, Sarah Smith
Summary: The Paleocene-Miocene sedimentary successions in southern Peru reveal the growth history of the northern Altiplano Plateau and foreland basin system. Through analyzing paleoelevation history, the study determines significant surface uplift during primary upper crustal shortening. New age models and calculations based on isotopic values suggest rapid surface uplift during late Miocene, potentially due to lower crustal flow and removal of lithosphere materials.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Article
Geochemistry & Geophysics
Andrea L. Stevens, Elizabeth A. Balgord, Barbara Carrapa
Article
Geosciences, Multidisciplinary
Andrea L. Stevens Goddard, Mariano A. Larrovere, Barbara Carrapa, R. Hernan Aciar, Patricia Alvarado
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2018)
Article
Geochemistry & Geophysics
Andrea L. Stevens Goddard, Jeffrey M. Trop, Kenneth D. Ridgway
Article
Geology
Andrea L. Stevens Goddard, Julie C. Fosdick
Editorial Material
Geology
Andrea L. Stevens Goddard, Julie C. Fosdick
Article
Geochemistry & Geophysics
James R. Worthington, Lothar Ratschbacher, Konstanze Stuebner, Jahanzeb Khan, Nicole Malz, Susanne Schneider, Paul Kapp, James B. Chapman, Andrea Stevens Goddard, Hanna L. Brooks, Hector M. Lamadrid, Matthew Steele-MacInnis, Daniel Rutte, Raymond Jonckheere, Joerg Pfaender, Bradley R. Hacker, Ilhomjon Oimahmadov, Mustafo Gadoev
Article
Geosciences, Multidisciplinary
Gustavo Ortiz, Andrea L. Stevens Goddard, Julie C. Fosdick, Patricia Alvarado, Barbara Carrapa, Eber Cristofolini
Summary: Reactivation of existing faults control deformation in orogenic systems like the Sierras Pampeanas; new thermochronology data and thermal history models reveal four discrete phases of deformation in the fault system, including Mesozoic extensional deformation and latest Miocene - Pliocene compressional deformation.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2021)
Article
Geochemistry & Geophysics
Barbara Carrapa, Peter G. DeCelles, Mihai N. Ducea, Gilby Jepson, Arthur Osakwe, Elizabeth Balgord, Andrea L. Stevens Goddard, Laura A. Giambiagi
Summary: This study applies a geochemical proxy approach to estimate the paleo-crustal thickness of the Andes near Cerro Aconcagua, revealing the importance of Miocene shortening in crustal thickening.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Andrea L. Stevens Goddard, Barbara Carrapa
