25.—Challenger's Voyage and the Black Sea Investigations at the close of the Nineteenth Century.

1972 ◽  
Vol 72 (1) ◽  
pp. 273-275
Author(s):  
I. A. Fedosseyev ◽  
A. F. Plakhotnick
Keyword(s):  
Nineteenth Century ◽  
World Ocean ◽  
The Arctic ◽  
The Black Sea ◽  
Important Work ◽  
The Pacific ◽  
The World ◽  
Antarctic Continent ◽  
The Pacific Ocean ◽  
The Antarctic

Though Russia, in contrast with England, had no broad access to the oceans, Russian oceanographers always took a great interest in the world ocean investigations. To confirm this we would first of all like to mention the Russian cruises around the world, made by I. F. Krusenstern and Ju. F. Lisjansky in 1803–06, V. M. Golovnin in 1806–13 and 1817–19, M. P. Lazarev in 1819–21 and 1822–25 (the second voyage, the main result of which was the discovery of the Antarctic Continent, was made together with F. F. Bellingshauzen), O. E. Kotsebu in 1815–18 and 1823–26, and F. O. Litke in 1826–29. The names of several Russian explorers who carried on important work in various parts of the Arctic and the Pacific Oceans in different periods of the nineteenth century are well known. At one time valuable results of the oceanological investigations, carried out by Admiral S. O. Makarov on the ship Vitjaz in the Pacific Ocean in 1886–89, attracted much attention. The fact that Vitjaz is lettered on the pediment of the Oceanographical Museum of Monaco among the ten ships most distinguished in oceanographical explorations from the whole world testifies to the scientific importance of Makarov's investigations.

scholarly journals CONTINENTAL FRAMING AND OUTDOOR SEAS THE PACIFIC OCEAN AS A PLANETARY LANDSCAPE GEOSYSTEM IN THE DEVELOPMENT OF THE WORLD OCEAN

2021 ◽  
Author(s):  
В.Т. Старожилов
Keyword(s):  
Pacific Ocean ◽  
Landscape Structure ◽  
World Ocean ◽  
Marginal Seas ◽  
Basic Model ◽  
The Pacific ◽  
The World ◽  
Model Foundation ◽  
Practical Development ◽  
The Pacific Ocean

Констатируется, что континентальное обрамление и окраинные моря Тихого океана как планетарная ландшафтная геосистема в освоении Мирового океана и выделенные как Тихоокеанский ландшафтный пояс (https://doi.org/10.18411/a-2017-089) как основа - модель научного и практического освоения геосистемы океан- континент ранее не рассматривалась. В настоящее время в связи с освоением переходной зоны Азиатского континента к океану появилась необходимость рассмотреть возможности применения ландшафтного подхода в практиках освоения геосистем этой зоны. Работа, представляет собой продолжение комплексных исследований в целом сформировавшейся ландшафтной школы профессора В.Т. Старожилова (doi:10.24411/1728-323Х-2020-13079, doi:10.18411/lj-05-2020-26). Отмечается, что комплексное изучение ландшафтной структуры обрамления Тихого океана, имеет базовое значение при природопользовании Мирового океана. Именно ландшафтный пояс, включающий Сихотэ-Алинскую, Нижнеамурскую, Камчатско-Курильскую, Сахалинскую и другие ландшафтные области и сопряженные с ними окраинные моря, представляет собой часть единой с Тихим океаном структуры природы и представляются как основа для выполнения задач науки и практики освоения территорий континентального обрамления Тихого океана, окраинных морей и использования материалов в освоении Мирового океана. Он, как планетарная ландшафтная структура, является базовой моделью «фундаментом» для построения гармонизированных с природой и связанных с океаном экологических, сельскохозяйственных и других отраслевых моделей освоения этой обширной тихоокеанской зоны. Отмечается, что в свою очередь применение компьютерной технологии векторно-слоевого ландшафтного метода создают платформу для разработки планов и проектов освоения. Он также является платформой для обучения студентов. Приводятся данные о картографической обеспеченности пояса современными векторно-слоевыми цифровыми материалами. It is stated that the continental framing and marginal seas of the Pacific Ocean as a planetary landscape geosystem in the development of the World Ocean and identified as the Pacific landscape belt (https://doi.org/10.18411/a-2017-089) as a basis - a model of scientific and practical development of the geosystem ocean-continent has not been previously considered. Currently, in connection with the development of the transition zone of the Asian continent to the ocean, it is necessary to consider the possibilities of applying the landscape approach in the practice of developing the geosystems of this zone. The work is a continuation of the comprehensive studies of the generally formed landscape school of Professor V.T. Starozhilov (doi: 10.24411 / 1728-323X-2020-13079, doi: 10.18411 / lj-05-2020-26). It is noted that a comprehensive study of the landscape structure of the Pacific Ocean framing is of fundamental importance in the use of natural resources in the World Ocean. It is the landscape belt, including the Sikhote-Alin, Nizhneamur, Kamchatka-Kuril, Sakhalin and other landscape areas and the marginal seas associated with them, that is a part of the structure of nature united with the Pacific Ocean and is presented as the basis for fulfilling the tasks of science and practice of developing territories of the continental framing The Pacific Ocean, marginal seas and the use of materials in the development of the World Ocean. It, as a planetary landscape structure, is the basic model "foundation" for building harmonized with nature and related to the ocean ecological, agricultural and other sectoral models for the development of this vast Pacific zone. It is noted that, in turn, the use of computer technology of the vector-layer landscape method creates a platform for the development of plans and development projects. It is also a platform for student learning. The data on the cartographic provision of the belt with modern vector-layer digital materials are presented.

scholarly journals Континентальное обрамление и окраинные моря Тихого океана как планетарная ландшафтная геосистема в освоении мирового океана

2021 ◽  
Vol 70 (2) ◽  
pp. 138-144
Author(s):  
В.Т. Старожилов
Keyword(s):  
Pacific Ocean ◽  
Landscape Structure ◽  
World Ocean ◽  
Marginal Seas ◽  
Basic Model ◽  
The Pacific ◽  
The World ◽  
Model Foundation ◽  
Practical Development ◽  
The Pacific Ocean

It is stated that the continental framing and marginal seas of the Pacific Ocean as a planetary landscape geosystem in the development of the World Ocean and identified as the Pacific landscape belt (https://doi.org/10.18411/a-2017-089) as a basis - a model of scientific and practical development of the geosystem ocean-continent has not been previously considered. Currently, in connection with the development of the transition zone of the Asian continent to the ocean, it is necessary to consider the possibilities of applying the landscape approach in the practice of developing the geosystems of this zone. The work is a continuation of the comprehensive studies of the generally formed landscape school of Professor V.T. Starozhilov (doi: 10.24411 / 1728-323X-2020-13079, doi: 10.18411 / lj-05-2020-26). It is noted that a comprehensive study of the landscape structure of the Pacific Ocean framing is of fundamental importance in the use of natural resources in the World Ocean. It is the landscape belt, including the Sikhote-Alin, Nizhneamur, Kamchatka-Kuril, Sakhalin and other landscape areas and the marginal seas associated with them, that is a part of the structure of nature united with the Pacific Ocean and is presented as the basis for fulfilling the tasks of science and practice of developing territories of the continental framing The Pacific Ocean, marginal seas and the use of materials in the development of the World Ocean. It, as a planetary landscape structure, is the basic model "foundation" for building harmonized with nature and related to the ocean ecological, agricultural and other sectoral models for the development of this vast Pacific zone. It is noted that, in turn, the use of computer technology of the vector-layer landscape method creates a platform for the development of plans and development projects. It is also a platform for student learning. The data on the cartographic provision of the belt with modern vector-layer digital materials are presented.

scholarly journals A subduction influence on ocean ridge basalts outside the Pacific subduction shield

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
A. Y. Yang ◽  
C. H. Langmuir ◽  
Y. Cai ◽  
P. Michael ◽  
S. L. Goldstein ◽  
...  
Keyword(s):  
Upper Mantle ◽  
The Arctic ◽  
Mantle Flow ◽  
Mantle Heterogeneity ◽  
Gakkel Ridge ◽  
The Pacific ◽  
Mid Ocean Ridge ◽  
The Pacific Ocean ◽  
Back Arc ◽  
Ocean Ridge

AbstractThe plate tectonic cycle produces chemically distinct mid-ocean ridge basalts and arc volcanics, with the latter enriched in elements such as Ba, Rb, Th, Sr and Pb and depleted in Nb owing to the water-rich flux from the subducted slab. Basalts from back-arc basins, with intermediate compositions, show that such a slab flux can be transported behind the volcanic front of the arc and incorporated into mantle flow. Hence it is puzzling why melts of subduction-modified mantle have rarely been recognized in mid-ocean ridge basalts. Here we report the first mid-ocean ridge basalt samples with distinct arc signatures, akin to back-arc basin basalts, from the Arctic Gakkel Ridge. A new high precision dataset for 576 Gakkel samples suggests a pervasive subduction influence in this region. This influence can also be identified in Atlantic and Indian mid-ocean ridge basalts but is nearly absent in Pacific mid-ocean ridge basalts. Such a hemispheric-scale upper mantle heterogeneity reflects subduction modification of the asthenospheric mantle which is incorporated into mantle flow, and whose geographical distribution is controlled dominantly by a “subduction shield” that has surrounded the Pacific Ocean for 180 Myr. Simple modeling suggests that a slab flux equivalent to ~13% of the output at arcs is incorporated into the convecting upper mantle.

Little-known arctic species Montacuta spitzbergensis (Bivalvia: Montacutidae) from the north-western Pacific with notes on Montacuta substriata and Tellimya ferruginosa

2008 ◽  
Vol 88 (2) ◽  
pp. 347-356 ◽  
Author(s):  
Gennady M. Kamenev
Keyword(s):  
Sea Of Okhotsk ◽  
First Record ◽  
Western Pacific ◽  
The Arctic ◽  
Arctic Species ◽  
The North ◽  
The Pacific ◽  
The Pacific Ocean ◽  
North Western ◽  
North Western Pacific

An expanded description of a little-known arctic species Montacuta spitzbergensis from the Sea of Okhotsk with new data on its morphology, ecology and geographical distribution is given. This is the first record of M. spitzbergensis from the north-western Pacific. It differs from other species of Montacuta in its large (to 8.4 mm), elongate–ovate, thick shell with wide, slightly curved hinge plate, wide, short, and shallow resilifer, and weakly developed external ligament. This species occurs in the Arctic Ocean (Spitsbergen, Barents, Kara, Laptev and Chukchi Seas) and the Pacific Ocean (Sea of Okhotsk) at depths from 9 to 232 m at a bottom temperature from −1.62°C to +2.50°C. The hinge structure of the type species of the genera Montacuta and Tellimya is also discussed.

Danian Mollusks from the Prince Creek Formation, Northern Alaska, and Implications for Arctic Ocean Paleogeography

1993 ◽  
Vol 67 (S35) ◽  
pp. 1-35 ◽  
Author(s):  
Louie Marincovich
Keyword(s):  
Arctic Ocean ◽  
World Ocean ◽  
Ocean Basin ◽  
The Arctic ◽  
The North ◽  
The World ◽  
The Arctic Ocean ◽  
Molluscan Fauna ◽  
Endemic Genera ◽  
Northern Alaska

The marine molluscan fauna of the Prince Creek Formation near Ocean Point, northern Alaska, is of Danian age. It is the only diverse and abundant Danian molluscan fauna known from the Arctic Ocean realm, and is the first evidence for an indigenous Paleocene shallow-water biota within a discrete Arctic Ocean Basin faunal province.A high percentage of endemic species, and two endemic genera, emphasize the degree to which the Arctic Ocean was geographically isolated from the world ocean during the earliest Tertiary. Many of the well-preserved Ocean Point mollusks, however, also occur in Danian faunas of the North American Western Interior, the Canadian Arctic Islands, Svalbard, and northwestern Europe, and are the basis for relating this Arctic Ocean fauna to that of the Danian world ocean.The Arctic Ocean was a Danian refugium for some genera that became extinct elsewhere during the Jurassic and Cretaceous. At the same time, this nearly landlocked ocean fostered the evolution of new taxa that later in the Paleogene migrated into the world ocean by way of the northeastern Atlantic. The first Cenozoic occurrences are reported for the bivalves Integricardium (Integricardium), Oxytoma (Hypoxytoma), Placunopsis, Tancredia (Tancredia), and Tellinimera, and the oldest Cenozoic records given for the bivalves Gari (Garum), Neilo, and Yoldia (Cnesterium). Among the 25 species in the molluscan fauna are four new gastropod species, Amauropsis fetteri, Ellipsoscapha sohli, Mathilda (Fimbriatella) amundseni, and Polinices (Euspira) repenningi, two new bivalve genera, Arcticlam and Mytilon, and 15 new bivalve species, Arcticlam nanseni, Corbula (Caryocorbula) betsyae, Crenella kannoi, Cyrtodaria katieae, Gari (Garum) brouwersae, Integricardium (Integricardium) keenae, Mytilon theresae, Neilo gryci, Nucula (Nucula) micheleae, Nuculana (Jupiteria) moriyai, Oxytoma (Hypoxytoma) hargrovei, Placunopsis rothi, Tancredia (Tancredia) slavichi, Tellinimera kauffmani, and Yoldia (Cnesterium) gladenkovi.

scholarly journals Antarctic ice-shelf calving triggered by the Honshu (Japan) earthquake and tsunami, March 2011

2011 ◽  
Vol 57 (205) ◽  
pp. 785-788 ◽  
Author(s):  
Kelly M. Brunt ◽  
Emile A. Okal ◽  
Douglas R. MacAyeal
Keyword(s):  
Pacific Ocean ◽  
Northern Hemisphere ◽  
European Space Agency ◽  
Observational Evidence ◽  
Ice Shelf ◽  
Wave Impact ◽  
Space Agency ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Antarctic

AbstractWe use European Space Agency Envisat data to present the first observational evidence that a Northern Hemisphere tsunami triggered Antarctic ice-shelf calving more than 13 000 km away. The Honshu tsunami of 11 March 2011 traversed the Pacific Ocean in <18 hours where it impinged on the Sulzberger Ice Shelf, resulting in the calving of 125 km2 of ice from a shelf front that had previously been stable for >46 years. This event further illustrates the growing evidence of ocean-wave impact on Antarctic calving and emphasizes the teleconnection between the Antarctic ice sheet and events as far away as the Northern Hemisphere.

A New Type of Mammalian Intersexuality

1928 ◽  
Vol 6 (1) ◽  
pp. 56-64
Author(s):  
JOHN R. BAKER
Keyword(s):  
Pacific Ocean ◽  
Considerable Proportion ◽  
The Pacific ◽  
The World ◽  
New Hebrides ◽  
New Type ◽  
The Pacific Ocean

(1) In certain islands of the New Hebrides (in the Pacific Ocean) a considerable proportion of the pigs are intersexual. Nowhere in the world are intersexual mammals so abundant. (2) These intersexes differ from the rare intersexes of European pigs in the invariable absence of any rudiment of uterus or vagina. (3) A tendency to intersexuality is inherited. (4) The intersexes are interpreted as genetic males in which the testicular hormone has been produced too late in development.

L’Antartide è veramente un "awful place"? I caratteri ambientali del continente più freddo della Terra

2012 ◽  
pp. 29-46
Author(s):  
Claudio Smiraglia
Keyword(s):  
Indigenous Population ◽  
Terrestrial Ecosystems ◽  
South Pole ◽  
The Past ◽  
Unique Information ◽  
The World ◽  
Antarctic Continent ◽  
Harsh Climate ◽  
The Many ◽  
The Antarctic

The Antarctic continent is certainly made an "awful" place by its harsh climate: in the past, explorers and researchers endured terrible hardships and the climate remains a challenge today, in spite of the many improvements in knowledge and technology. The Antarctic may be termed "the continent of the extremes", as it occupies an area unlike any other on earth. It is the farthest and most inaccessible and isolated continent; the most regular because of its rounded shape, with the South Pole at the centre; the coldest continent, with temperatures falling to -90°C; the driest (with an average of 130 mm of precipitation); the windiest, the highest, the most glacialized (it contains 91% of the volume of the earth’s ice). It also displays the most monotonous landscapes and presents the greatest contrast between marine and terrestrial ecosystems. But the Antarctic is also "extreme" because it is the least populated continent, with no indigenous population at all, while its few settlements (consisting in scientific bases) are concentrated on the coast; it is the only place that does not belong to one nation, but to all the world; it is the place where unique information on the past, present and future of humankind is revealed.

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