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2D and 3D Numerical Models of the Growth of Foraminiferal Shells [chapter]

Paweł Łabaj, Paweł Topa, Jarosław Tyszka, Witold Alda
2003 Lecture Notes in Computer Science  
Our recent model follows the moving reference approach of theoretical modelling of foraminiferal shells.  ...  The resulted "theoretical shells" closely mimics morphology and variability of recent and fossil foraminifera. The model is presented as an applet at  ...  This research is partially sponsored by the Polish Committee for Scientific Research (KBN grant nr 3 PO4D 048 24 awarded to JT and PT).  ... 
doi:10.1007/3-540-44860-8_69 fatcat:lst2e6lu45ahbiglwp6szcgndm

Nanometer-Scale Chemistry of a Calcite Biomineralization Template: Implications for Skeletal Composition and Nucleation

Oscar Branson, Elisa A. Bonnin, Daniel E. Perea, Howard J. Spero, Zihua Zhu, Maria Winters, Bärbel Hönisch, Ann D. Russell, Jennifer S. Fehrenbacher, Alexander C. Gagnon
2016 Proceedings of the National Academy of Sciences of the United States of America  
Here we map the chemistry of an embedded organic template structure within a carbonate skeleton of the foraminifera Orbulina universa using both atom probe tomography (APT), a 3D chemical imaging technique  ...  with Ångström-level spatial resolution, and time-of-flight secondary ionization mass spectrometry (ToF-SIMS), a 2D chemical imaging technique with submicron resolution.  ...  APT: Subnanometer 3D Maps. Using APT, we map the 3D chemistry of the interface between an embedded organic structure and the adjacent calcite within a single foraminiferal specimen.  ... 
doi:10.1073/pnas.1522864113 pmid:27794119 pmcid:PMC5135321 fatcat:7tboqsg375ab7btnb4mcmupyre

Reading the Fine Print: Ultra-Microstructures of Foraminiferal Calcification Revealed Using Focused Ion Beam Microscopy

Yukiko Nagai, Katsuyuki Uematsu, Ryoji Wani, Takashi Toyofuku
2018 Frontiers in Marine Science  
For the first time, we show that numerous voids of calcareous layers and internal organic structures are present within the SOC during the calcification process.  ...  Especially crucial in the understanding of elemental composition and distribution is the involvement of organic templates separating different layers of calcite forming the wall of a foraminiferal chamber  ...  Focusing on the morphology of the materials in the calcareous layer, blocky, parabolic conical, and columnar shapes were observed in specimens #1 and #2 (C in Figures 2D,E, 3D,E) .  ... 
doi:10.3389/fmars.2018.00067 fatcat:zdmdrymo6bft7l5ppictcpxqxu

Coupled sea surface temperature-seawaterδ18O reconstructions in the Arabian Sea at the millennial scale for the last 35 ka

Pallavi Anand, Dick Kroon, Arun Deo Singh, Raja S. Ganeshram, Gerald Ganssen, Henry Elderfield
2008 Paleoceanography  
We used coupled Mg/Ca-d 18 O calcite variability in two planktonic foraminiferal species: Globigerinoides ruber, which thrives throughout the year, and Globigerina bulloides, which occurs mainly when surface  ...  SST and d 18 Ow reconstructions reveal evidence of millennial-scale cycles, particularly in the eastern Arabian Sea.  ...  Singh thanks the Department of Science and Technology, Government of India, for financial support (SR/S4/ES-30/2002). Support to H.E. and P.A. from NERC is also acknowledged.  ... 
doi:10.1029/2007pa001564 fatcat:loecuqk5qva3zmtx6srp4zcygy

Hydrodynamic constraints on the evolution and ecology of planktic foraminifera

Aude G.M. Caromel, Daniela N. Schmidt, Jeremy C. Phillips, Emily J. Rayfield
2014 Marine Micropaleontology  
The origin and function of a biomineralised skeleton in many of the non-motile groups of plankton remains an open question.  ...  Computational Fluid Dynamics simulations present a way to quantify the relative effect of size (maximum diameter), shape of the test and density (ratio between calcite and cavity volumes) of the specimen  ...  DNS acknowledges the support of the Royal Society in form of a URF.  ... 
doi:10.1016/j.marmicro.2014.01.002 fatcat:onzdsajeqnahdjxtw6copgfyui

Un nuevo taller pesquero-salazonero romano en la Isla de Saltés (Estuario Tinto-Odiel, SO España): La Cascajera y su contexto arqueológico y geológico

Javier Bermejo Meléndez, Paula Gómez Gutiérrez, Maria L. González-Regalado, Francisco Ruiz, Juan M. Campos, Joaquín Rodríguez-Vidal, Luis Miguel Cáceres, María José Clemente, Antonio Toscano, Manuel Abad, Tatiana Izquierdo, Maria Isabel Prudencio (+5 others)
2019 Cuaternario y Geomorfología  
It is a contribution to the Research Center in Historical, Cultural and Natural Heritage (CIPHCN) of the University of Huelva.  ...  Acknowledgments This work has been carried out through the project ´From the Atlantic to the Tyrrhenian. The hispanic ports and their commercial relations with Ostia Antica.  ...  The highest percentages of these remains are concentrated in sectors A and B (Fig. 3D) (Fig. 7) .  ... 
doi:10.17735/cyg.v33i3-4.69080 fatcat:crbnso47crd2va22gijvfjxje4

The Magellan mound province in the Porcupine Basin

V. A. I. Huvenne, W. R. Bailey, P. M. Shannon, J. Naeth, R. di Primio, J. P. Henriet, B. Horsfield, H. de Haas, A. Wheeler, K. Olu-Le Roy
2005 International journal of earth sciences  
Although conclusive evidence concerning the processes of mound initiation proves to be elusive, the results of both fault analysis and 2D numerical modelling failed to identify, with confidence, any direct  ...  Although conclusive evidence concerning the processes of mound initiation proves to be elusive, the results of both fault analysis and 2D numerical modelling failed to identify, with confidence, any direct  ...  provision of the 3D seismic data volume.  ... 
doi:10.1007/s00531-005-0494-z fatcat:3djm6ltj3raehc22ntjymy46p4

Deep ocean carbonate ion increase during mid Miocene CO2 decline

Sev Kender, Jimin Yu, Victoria L. Peck
2014 Scientific Reports  
This study is part of the Palaeoclimate and Palaeoenvironment core science programme at the British Geological Survey, funded by the Natural Environment Research Council (S.K., V.P.) and by grant ARC DP140101393  ...  S.K. publishes with permission of the Executive Director of the British Geological Survey (NERC).  ...  directly with benthic foraminiferal shell Li/Ca and Mg/Ca 7 , also subject to complications such as a temperature effect 7 (Supplementary Information).  ... 
doi:10.1038/srep04187 pmid:24569646 pmcid:PMC3935200 fatcat:mrvxy77vmvesdisep4hn4dsvnq

CONTROLS ON THE DISTRIBUTION OF NUMMULITE FACIES: A CASE STUDY FROM THE LATE YPRESIAN EL GARIA FORMATION (KESRA PLATEAU, CENTRAL TUNISIA)

S. Jorry, E. Davaud, B. Caline
2003 Journal of Petroleum Geology  
A tentative 3D facies model illustrates the relationship between facies and fault distributions in the Kesra area.  ...  Facies distribution in the Kesra area was strongly controlled by the inherited topography, which reflects the reactivation of NW-SE trending faults during the Late Cretaceous and Palaeocene. 5.  ...  The assistance of Richard Labourdette (Total Exploration Production) for the 3D reconstruction was greatly appreciated.  ... 
doi:10.1111/j.1747-5457.2003.tb00031.x fatcat:kra4biof2ng5tir5bvcyrjk2ue

INSIGHTS INTO THE DISTRIBUTION OF SHALLOW-MARINE TO ESTUARINE EARLY MIOCENE OYSTERS FROM SOUTHWESTERN PATAGONIA: SEDIMENTOLOGIC AND STABLE ISOTOPE CONSTRAINTS

J. I. CUITINO, R. V. SANTOS, R. A. SCASSO
2014 Palaios  
The isotopic composition of the shell seems to be associated with the microstructure of the growth increments.  ...  The lower Miocene Estancia 25 de Mayo Formation consists of shallowmarine to estuarine deposits that bear numerous oyster shell beds distributed throughout the succession.  ...  This study was funded by grants of the Consejo Nacional de Investigaciones Cientı ´ficas y Te ´cnicas (CONICET) and the Agencia Nacional de Promocio ´n Cientı ´fica y Tecnolo ´gica (ANPCyT) of Argentina  ... 
doi:10.2110/palo.2012.p12-105r fatcat:3tevwtk6snh3nafsjdy7lhqqdm

Sediment-starved sand ridges on a mixed carbonate/siliciclastic inner shelf off west-central Florida

S.E. Harrison, S.D. Locker, A.C. Hine, J.H. Edwards, D.F. Naar, D.C. Twichell, D.J. Mallinson
2003 Marine Geology  
model.  ...  bioturbation, (4) sediment textural asymmetry indicative of selective transport across bedform topography, (5) morphological asymmetry of sand ridges and 2D dunes, and (6) current-meter data indicating  ...  This work was also partially funded by the o⁄ce of Naval Research Contract #N00014-96-1-5032. We thank Guy Gelfenbaum and Terry Edgar of the USGS for their program management e¡orts.  ... 
doi:10.1016/s0025-3227(03)00182-8 fatcat:qvbcqd3pq5eh5lrxwdc2kotnoq

A Plio-Pleistocene sediment wedge on the continental shelf west of central Ireland: The Connemara Fan

Stephen McCarron, Daniel Praeg, Colm Ó Cofaigh, Xavier Monteys, Benjamin Thébaudeau, Kieran Craven, Muhammad Mudasar Saqab, Andrea Cova
2018 Marine Geology  
Here we present evidence of a previously unrecognised partially glacially-fed Plio-Pleistocene sediment wedge on the continental shelf west of central Ireland using 2D and 3D seismic reflection data correlated  ...  Extracts from a 3D seismic data volume within the central part of the fan show channels within the Pliocene succession, while iceberg scours are observed on the R1 and R2 reflectors.  ...  Acknowledgements The authors acknowledge the support of the Geological Survey of Ireland and Marine Institute INFOMAR programme for the GLAMAR (2009)  ... 
doi:10.1016/j.margeo.2018.02.009 fatcat:3a2iq26kcjcddadyt6lziljsme

Middle Miocene tropical oligotrophic lagoon deposit sheds light on the origin of the Western Australian coral reef province

Rosine Riera, Julien Bourget, Eckart Håkansson, Victorien Paumard, Moyra E.J. Wilson
2021 Palaeogeography, Palaeoclimatology, Palaeoecology  
Development of the lagoon and seismic reefs may have also been promoted by middle Miocene aridification of the coast bordering the NWS, and by repeated eustatic-driven exposures of the NWS.  ...  The outcrops and cores investigated are dominantly composed of peloidal packstones and micritic floatstones containing larger benthic foraminifera, Halimeda sp. and scleractinian corals, including reef-building  ...  The authors would also like to acknowledge the staff of the Perth Core Library and of the Department of Mines, Industry Regulation and Safety of Western Australia for providing access to stored cores and  ... 
doi:10.1016/j.palaeo.2021.110501 fatcat:tbhxxz3xlbdhjfe4eshiccy4qe

Late Pleistocene baldcypress ( Taxodium distichum ) forest deposit on the continental shelf of the northern Gulf of Mexico

Kristine L. Delong, Suyapa Gonzalez, Jeffrey B. Obelcz, Jonathan T. Truong, Samuel J. Bentley, Kehui Xu, Carl A. Reese, Grant L. Harley, Alicia Caporaso, Zhixiong Shen, Beth A. Middleton
2021 Boreas  
Foraminiferal analysis reveals the location of the terrestrial-marine transitional layer above the Pleistocene facies in an interbedded sand and mud facies (3940AE30 (1r) 14 C a BP), which is part of a  ...  The occurrence of palaeosol and swamp facies of broadly similar ages and elevation suggests the glacial landscape possessed topographic relief that allowed wood, mud and peats to be preserved for~50 ka  ...  Two seismic units are resolved from the three surfaces. Fig. 9 . A. 3D subsurface model for the study area. B.  ... 
doi:10.1111/bor.12524 fatcat:rx4fc7q72jdvzjturyeidaipt4

Evolution and Development of Inflorescence Architectures

P. Prusinkiewicz, Y. Erasmus, B. Lane, L. D. Harder, E. Coen
2007 Science  
We show that a single developmental model accounts for the restricted range of inflorescence types observed in nature and that this model is supported by molecular genetic studies.  ...  To understand the constraints on biological diversity, we analyzed how selection and development interact to control the evolution of inflorescences, the branching structures that bear flowers.  ...  (F and G) Regions of high fitness in 3D fitness spaces. Horizontal sections correspond to the high-fitness regions in 2D fitness landscapes.  ... 
doi:10.1126/science.1140429 pmid:17525303 fatcat:hmdnr4rn4ndfto2btass5jsboe
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