458 Works

Sediment trap and sediment core diatom δ¹⁸O data from the Guaymas Basin covering an annual diatom bloom cycle and 220 years of sedimentation, supplement to: Menicucci, Anthony J; Thunell, Robert C; Spero, Howard J (2019): 220 year diatom δ¹⁸O reconstruction of the Guaymas Basin thermocline using microfluorination. Paleoceanography and Paleoclimatology

Anthony J Menicucci
The removal of exchangeable oxygen from diatom opal prior to diatom δ¹⁸O analysis is a crucial first step before analyzing frustule oxygen isotopes for paleoceanographic applications. We present the results of experiments that quantify the temperature dependent reactivity of biogenic silica with water under laboratory conditions. We quantified the equilibration between exchangeable oxygen in the diatom opal lattice by immersing samples from sediment traps (STS-1) and a sediment core (BC-43, sample from 11cm core depth)...

Plot data of insects and percentage analysis of the leaf area lost by instects on Mount Kilimanjaro, supplement to: Njovu, Henry K; Peters, Marcell Karl; Schellenberger Costa, David; Brandl, Roland; Kleyer, Michael; Steffan-Dewenter, Ingolf (2019): Leaf traits mediate changes in invertebrate herbivory along broad environmental gradients on Mt. Kilimanjaro, Tanzania. Journal of Animal Ecology, 88(11), 1777-1788

Henry K Njovu, Ingolf Steffan-Dewenter & Marcell Karl Peters
This data set contains data on elevation, climate, leaf traits and herbivore numbers which were collected for a study on leaf herbivory by invertebrates (mostly insects) on 55 study plots on Mount Kilimanjaro.This data set includes data on leaf herbivory by invertebrates (mostly insects) from 55 study plots along elevation and land use gradients on Mount Kilimanjaro, Tanzania.

Widespread global peatland establishment and persistence for the last 130,99 years, supplement to: Treat, Claire C; Kleinen, Thomas; Broothaerts, Nils; Dalton, April S; Dommain, René; Douglas, Thomas A; Drexler, Judith; Finkelstein, Sarah A; Grosse, Guido; Hope, Geoffrey; Hutchings, Jack A; Jones, Miriam C; Kuhry, Peter; Lacourse, Terri; Lähteenoja, Outi; Loisel, Julie; Notebaert, Bastiaan; Payne, Richard J; Peteet, Dorothy M; Sannel, A Britta K; Stelling, Jonathan; Strauss, Jens; Swindles, Graeme T; Talbot, Julie; Tarnocai, Charles; Verstraeten, Gert; Williams, Christopher J; Xia, Zhengyu; Yu, Zicheng; Väliranta, Minna; Hättestrand, Martina; Alexanderson, Helena; Brovkin, Victor (2019): Widespread global peatland establishment and persistence over the last 130,000 y. Proceedings of the National Academy of Sciences

Claire C Treat, Nils Broothaerts, April S Dalton, René Dommain, Tom Douglas, Judith Drexler, Sarah A Finkelstein, Guido Grosse, Geoffrey Hope, Jack A Hutchings, Miriam C Jones, Thomas Kleinen, Peter Kuhry, Terri Lacourse, Outi Lähteenoja, Julie Loisel, Bastiaan Notebaert, Richard J Payne, Dorothy M Peteet, A Britta K Sannel, Jonathan Stelling, Jens Strauss, Graeme T Swindles, Julie Talbot, Charles Tarnocai … & Victor Brovkin
We present the first synthesis of global peatland extent through the last glacial cycle (130 ka) based on >975 detailed stratigraphic descriptions from exposures, soil pits, and sediment cores. Buried peats are defined as organic-rich sediments overlain by mineral sediments. Also included are deposits rich in wetland macrofossils indicated a local peatland environment.The dataset includes location (lat/long), chronologic information (when available), a description of the buried peat sediment, overlying and underlying sediments, whether geochemical information...

Geochemical and quinone biomarker concentrations in the Black Sea water column and sediments, supplement to: Becker, Kevin W; Elling, Felix J; Schröder, Jan Martin; Lipp, Julius S; Goldhammer, Tobias; Zabel, Matthias; Elvert, Marcus; Overmann, Jörg; Hinrichs, Kai-Uwe (2018): Isoprenoid quinones resolve the stratification of redox processes in a biogeochemical continuum from the photic zone to deep anoxic sediments of the Black Sea. Applied and Environmental Microbiology, 84(10)

Kevin W Becker, Felix J Elling, Jan Martin Schröder, Julius S Lipp, Tobias Goldhammer, Matthias Zabel, Marcus Elvert, Jörg Overmann & Kai-Uwe Hinrichs
The stratified water column of the Black Sea serves as a model ecosystem for studying the interactions of microorganisms with major biogeochemical cycles. Here, we provide detailed analysis of isoprenoid quinones to study microbial redox processes in the ocean. In a continuum from the photic zone through the chemocline into deep anoxic sediments of the southern Black Sea, diagnostic quinones and inorganic geochemical parameters indicate niche segregation between redox processes and corresponding shifts in microbial...

Dissolved methane, nitrous oxide, carbon dioxide, water isotope, salinity and temperature data from Cambridge Bay, Nunavut, Canada (2017-2018), supplement to: Manning, Cara C M; Preston, Victoria L; Jones, Samantha F; Michel, Anna P M; Nicholson, David P; Duke, Patrick J; Ahmed, Mohamed M M; Manganini, Kevin; Else, Brent G T; Tortell, Philippe Daniel (accepted): River inflow dominates methane emissions in an Arctic coastal system. Geophysical Research Letters, e2020GL087669

Cara C M Manning, Victoria L Preston, Samantha F Jones, Anna P M Michel, David P Nicholson, Patrick J Duke, Mohamed M M Ahmed, Kevin Manganini, Brent G T Else & Philippe Daniel Tortell
This data set contains biogeochemical measurements from an estuary and river adjacent to Cambridge Bay, Nunavut, Canada collected in 2017-2018. Methane and nitrous oxide concentration and water isotopic composition samples were collected from niskin bottles or a submersible pump. Conductivity, temperature, and depth data from a CTD sensor is provided for each sample. The data set also includes high-frequency observations of methane, carbon dioxide, salinity, temperature, and depth made with a novel robotic kayak with...

Ground-based measurements on aerosol particles at Paphos, Cyprus, in March-April 2017, supplement to: Gong, Xianda; Wex, Heike; Müller, Thomas; Wiedensohler, Alfred; Höhler, Kristina; Kandler, Konrad; Ma, Nan; Dietel, Barbara; Schiebel, Thea; Möhler, Ottmar; Stratmann, Frank (2019): Characterization of aerosol properties at Cyprus, focusing on cloud condensation nuclei and ice-nucleating particles. Atmospheric Chemistry and Physics, 19(16), 10883-10900

Xianda Gong, Heike Wex, Thomas Müller, Alfred Wiedensohler, Kristina Höhler, Konrad Kandler, Nan Ma, Barbara Dietel, Thea Schiebel, Ottmar Möhler & Frank Stratmann
As part of the A-LIFE (Absorbing aerosol layers in a changing climate: aging, lifetime and dynamics) campaign, ground-based measurements were carried out in Paphos, Cyprus, for characterizing the abundance, properties and sources of aerosol particles in general, and cloud condensation nuclei (CCN) and ice nucleating particles (INP), in particular. New particle formation (NPF) events with subsequent growth of the particles into the CCN size range were observed. Aitken mode particles featured κ values of 0.21...

XRF core scanning data, grain size distributions, conventional XRF data, bulk organic δ¹³C records, CaCO3 and TOC values of Lower Cretaceous mudstones from the eastern Lower Saxony Basin, Northern Germany, supplement to: Thöle, Hauke; Bornemann, André; Heimhofer, Ulrich; Luppold, Friedrich Wilhelm; Blumenberg, Martin; Dohrmann, Reiner; Erbacher, Jochen (2020): Using high‐resolution XRF analyses as a sequence stratigraphic tool in a mudstone‐dominated succession (Early Cretaceous, Lower Saxony Basin, Northern Germany). The Depositional Record, 6(1), 236-258

Hauke Thöle, André Bornemann, Ulrich Heimhofer, Friedrich Wilhelm Luppold, Martin Blumenberg & Reiner Dohrmann
Delineation of stratigraphic sequences and their component systems tracts in mudstone-dominated successions is challenging due to the relatively homogenous, fine-grained nature of the strata. High-resolution elemental intensity data from X-ray fluorescence core scanning is used in order to develop a sequence stratigraphic framework for the Lower Cretaceous monotonous mudstone succession in the eastern Lower Saxony Basin. The study is based on four drill cores covering the Berriasian to Aptian interval. In addition, carbon isotope (δ13Corg),...

Concentration and fluxes of dust and export production proxies on cores MD11-3353 and MD11-3357, supplement to: Thöle, Lena M; Amsler, Helen Eri; Moretti, Simone; Auderset, Alexandra; Gilgannon, James; Lippold, Jörg; Vogel, Hendrik; Crosta, Xavier; Mazaud, Alain; Michel, Elisabeth; Martínez-García, Alfredo; Jaccard, Samuel L (2019): Glacial-interglacial dust and export production records from the Southern Indian Ocean. Earth and Planetary Science Letters, 525, 115716

Lena M Thöle, Helen Eri Amsler, Simone Moretti, Alexandra Auderset, James Gilgannon, Jörg Lippold, Hendrik Vogel, Xavier Crosta, Alain Mazaud, Elisabeth Michel, Alfredo Martínez-García & Samuel L Jaccard
We present 230Th-normalized dust and export production fluxes for two contrasted marine sediment cores spanning the Antarctic Polar Front, close to the Kerguelen Plateau in the Southern Indian Ocean, covering the last glacial cycle.We report glacial lithogenic fluxes comparable to the South Atlantic and higher than in the South Pacific sectors of the Southern Ocean. Structural and temporal discrepancies with dust reconstructions from Antarctic ice cores and the Atlantic and Pacific sectors of the Subantarctic...

Registration Year

  • 2019

Resource Types

  • Collection


  • University of Iowa
  • Boston University