Ali Mehmet Celâl Şengör: A geologist who unravels the histories of continents and oceans

2019 ◽  
Vol 56 (12) ◽  
pp. v-viii
Author(s):  
Ali Polat ◽  
John F. Dewey
Keyword(s):  
Earth Sciences ◽  
Canadian Journal ◽  
Plate Tectonics ◽  
Research Articles ◽  
Special Issue ◽  
Tectonic Processes ◽  
History Of Geology ◽  
History Of ◽  
Rocky Planets

This second issue of the Canadian Journal of Earth Sciences special issue dedicated to Ali Mehmet Celâl Şengör for his outstanding contributions to plate tectonics and history of geology includes 11 research articles. These articles have diverse subject matters dealing with tectonic processes in California, Africa, Asia, Iceland, Europe, Canada, and rocky planets. The summaries and main conclusions of these articles are presented here.

Ali Mehmet Celâl Şengör: A geologist who unravels the histories of continents and oceans

2019 ◽  
Vol 56 (11) ◽  
pp. v-viii
Author(s):  
Ali Polat
Keyword(s):  
Plate Tectonics ◽  
Orogenic Belt ◽  
Special Issue ◽  
Geological Processes ◽  
History Of Geology ◽  
The World ◽  
History Of ◽  
Himalayan Orogenic Belt ◽  
Orogenic Belts

This special issue is dedicated to Ali Mehmet Celâl Şengör for his outstanding contributions to plate tectonics and history of geology. His studies have unraveled several mysteries on the origin and deformation of continents and formation of orogenic belts in many parts of the world. We received 22 articles for the special issue, 11 of which are published in this issue. The rest of the articles will be published in the next issue. The articles in this issue mainly focus on geological processes in the Alpine–Himalayan orogenic belt and on the history of the theory of plate tectonics.

scholarly journals Principles of structural geology on rocky planets

2019 ◽  
Vol 56 (12) ◽  
pp. 1437-1457
Author(s):  
Christian Klimczak ◽  
Paul K. Byrne ◽  
A.M. Celâl Şengör ◽  
Sean C. Solomon
Keyword(s):  
Structural Geology ◽  
Plate Tectonics ◽  
Large Scale ◽  
The Other ◽  
Tectonic Structures ◽  
Tectonic Plates ◽  
Tectonic Processes ◽  
Planetary Tectonics ◽  
Rocky Planets ◽  
Mechanisms Of Deformation

Although Earth is the only known planet on which plate tectonics operates, many small- and large-scale tectonic landforms indicate that deformational processes also occur on the other rocky planets. Although the mechanisms of deformation differ on Mercury, Venus, and Mars, the surface manifestations of their tectonics are frequently very similar to those found on Earth. Furthermore, tectonic processes invoked to explain deformation on Earth before the recognition of horizontal mobility of tectonic plates remain relevant for the other rocky planets. These connections highlight the importance of drawing analogies between the rocky planets for characterizing deformation of their lithospheres and for describing, applying appropriate nomenclature, and understanding the formation of their resulting tectonic structures. Here we characterize and compare the lithospheres of the rocky planets, describe structures of interest and where we study them, provide examples of how historic views on geology are applicable to planetary tectonics, and then apply these concepts to Mercury, Venus, and Mars.

Historical introduction, overview, and reproductive biology of the protochordates

2005 ◽  
Vol 83 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Charles C Lambert
Keyword(s):  
Reproductive Biology ◽  
Canadian Journal ◽  
Special Issue ◽  
Free Swimming ◽  
History Of Research ◽  
History Of ◽  
Structural Traits

This issue of the Canadian Journal of Zoology exhaustively reviews most major aspects of protochordate biology by specialists in their fields. Protochordates are members of two deuterostome phyla that are exclusively marine. The Hemichordata, with solitary enteropneusts and colonial pterobranchs, share a ciliated larva with echinoderms and appear to be closely related, but they also have many chordate-like features. The invertebrate chordates are composed of the exclusively solitary cephalochordates and the tunicates with both solitary and colonial forms. The cephalochordates are all free-swimming, but the tunicates include both sessile and free-swimming forms. Here I explore the history of research on protochordates, show how views on their relationships have changed with time, and review some of their reproductive and structural traits not included in other contributions to this special issue.

John Tuzo Wilson: a man who moved mountains

2014 ◽  
Vol 51 (3) ◽  
pp. xvii-xxxi
Author(s):  
Gordon F. West ◽  
Ron M. Farquhar ◽  
George D. Garland ◽  
Henry C. Halls ◽  
Lawrence W. Morley ◽  
...  
Keyword(s):  
Earth Sciences ◽  
Plate Tectonics ◽  
Earth Science ◽  
National Research Council ◽  
Science Research ◽  
Rapid Expansion ◽  
Tectonic Processes ◽  
Major Player ◽  
Canadian Research

Fifty years ago, the world’s Earth Scientists experienced the so-called “Revolution in the Earth Sciences”. In the decade from 1960 to 1970, a massive convergence took place from many diverse and contradictory theories about the tectonic processes operating on Earth (then loosely called “mountain building”) to a single widely accepted paradigm now called Plate Tectonics. A major player in leading the international “Revolution” was Canadian geophysicist J. Tuzo Wilson. This tribute reviews how he helped define and promote the Plate Tectonic paradigm, and also, from 1946 to 1967, how he led a rapid expansion of the role of geophysics in Canadian and international earth science. Wilson was a controversial figure before and during the “Revolution”, but his influence was large. It was not coincidental that earth science research in Canada grew by 1964 to the point where the National Research Council of Canada could add the Canadian Journal of Earth Sciences to its group of Canadian research journals.

Introduction to special issue of Canadian Journal of Earth Sciences: The Trans-Hudson Orogen Transect of Lithoprobe

2005 ◽  
Vol 42 (4) ◽  
pp. 379-383 ◽  
Author(s):  
Zoltan Hajnal ◽  
Kevin M Ansdell ◽  
Ken E Ashton
Keyword(s):  
Earth Sciences ◽  
Canadian Journal ◽  
Geological Survey ◽  
Special Issue ◽  
Volcanic Arc ◽  
Strong Case ◽  
Flin Flon

Dedication: Dr. John F. Lewry (1939–1999; see Saskatchewan Geological Survey 1999) dedicated his career to investigations of the Saskatchewan–Manitoba segment of the Trans-Hudson Orogen (THO), one of the principal Paleoproterozoic orogens associated with the assembly of Laurentia. Indeed, one can make a strong case that Lithoprobe's Trans-Hudson Orogen Transect (THOT) was designed to test the tectonic models proposed by John Lewry. He delineated the distinct tectonic provinces in the western part of the THO, predicted the presence of an Archean craton trapped within the THO, and recognized and interpreted the significance of the Pelican Thrust between the juvenile Paleoproterozoic volcanic arc complex of the western Flin Flon Domain and the Archean craton, now called the Sask craton. The research published in Lewry and Stauffer (1990), and many of his ideas, provided the framework for the design of the THOT geophysical and geological studies. John Lewry was co-leader of the THOT until he passed away in 1999 after a battle with cancer. This Special Issue of the Canadian Journal of Earth Sciences is dedicated to him.

Introduction to Special Issue ofCanadian Journal of Earth Sciences: Canadian contributions to planetary geoscience

2013 ◽  
Vol 50 (1) ◽  
pp. 1-3
Author(s):  
Marie-Claude Williamson ◽  
Catherine L. Johnson ◽  
Paul J. Sylvester
Keyword(s):  
Earth Sciences ◽  
Annual Meeting ◽  
Canadian Journal ◽  
Special Session ◽  
Special Issue ◽  
Planetary Geology ◽  
The Past ◽  
Joint Annual Meeting ◽  
New Vision ◽  
At Home

The first Special Issue published by the Canadian Journal of Earth Sciences in the field of planetary sciences consists of a collection of nine papers on astromaterials, planetary geology, and Earth-based analogues. We describe the milestones that led to the development of the planetary geology and geophysics (PG&G) community in Canada over the past 5 years, which culminated in record-breaking attendance at a special session of the 2011 GAC–MAC–SEG–SGA Joint Annual Meeting held in Ottawa. The idea of a Special Issue was met with enthusiasm by delegates from coast to coast. By connecting the fields of earth and planetary sciences, the Canadian Journal of Earth Sciences pioneers a new vision for geoscience that expands the options available to Canadians who wish to publish their research at home.

Utility of cartographic history to historical studies of the earth sciences

2015 ◽  
Vol 34 (2) ◽  
pp. 263-274 ◽  
Author(s):  
David I. Spanagel
Keyword(s):  
Earth Sciences ◽  
Plate Tectonics ◽  
Continental Drift ◽  
Geographical Information ◽  
Paper Briefly ◽  
Seafloor Mapping ◽  
The Earth ◽  
History Of ◽  
Research Questions ◽  
Analytical Approaches

Attention to the histories of geography and of cartography can enable the historian of earth sciences to frame fruitful historical research questions. This paper briefly analyzes various nineteenth-century representations of geological and geographical information on maps of North American interior regions, as well as several examples drawn from the twentieth century geological debate surrounding continental drift/plate tectonics ideas (during the pre- and post-seafloor mapping eras). The purpose of reviewing these examples is to demonstrate how one might utilize analytical approaches and concepts developed by historians of cartography to interpret and trace the broader consequences of maps in the history of the earth sciences.

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