scholarly journals Internet Portal "Earth History: Geological Perspective". High-Technology Popularization of Scientific Geological Knowledge

2021 ◽  
Vol 24 (4) ◽  
pp. 604-621
Author(s):  
Aleksandr Sergeevich Eremenko ◽  
Vera Viktorovna Naumova ◽  
Aleksey Andreevich Zagumennov ◽  
Vitaliy Sergeevich Eremenko ◽  
Anastasia Nikolaevna Zlobina

This work is related to the development of a high-tech popular science Internet portal "History of the Earth". The developed resource sets as its main goal the popularization of modern scientific geological knowledge using popular science multimedia content and software tools for interactive work with it. The Internet resource is intended for schoolchildren and students, as well as a wide range of Internet users.

This volume vividly demonstrates the importance and increasing breadth of quantitative methods in the earth sciences. With contributions from an international cast of leading practitioners, chapters cover a wide range of state-of-the-art methods and applications, including computer modeling and mapping techniques. Many chapters also contain reviews and extensive bibliographies which serve to make this an invaluable introduction to the entire field. In addition to its detailed presentations, the book includes chapters on the history of geomathematics and on R.G.V. Eigen, the "father" of mathematical geology. Written to commemorate the 25th anniversary of the International Association for Mathematical Geology, the book will be sought after by both practitioners and researchers in all branches of geology.


Radiocarbon ◽  
2001 ◽  
Vol 43 (2B) ◽  
pp. 731-742 ◽  
Author(s):  
D Lal ◽  
A J T Jull

Nuclear interactions of cosmic rays produce a number of stable and radioactive isotopes on the earth (Lai and Peters 1967). Two of these, 14C and 10Be, find applications as tracers in a wide variety of earth science problems by virtue of their special combination of attributes: 1) their source functions, 2) their half-lives, and 3) their chemical properties. The radioisotope, 14C (half-life = 5730 yr) produced in the earth's atmosphere was the first to be discovered (Anderson et al. 1947; Libby 1952). The next longer-lived isotope, also produced in the earth's atmosphere, 10Be (half-life = 1.5 myr) was discovered independently by two groups within a decade (Arnold 1956; Goel et al. 1957; Lal 1991a). Both the isotopes are produced efficiently in the earth's atmosphere, and also in solids on the earth's surface. Independently and jointly they serve as useful tracers for characterizing the evolutionary history of a wide range of materials and artifacts. Here, we specifically focus on the production of 14C in terrestrial solids, designated as in-situ-produced 14C (to differentiate it from atmospheric 14C, initially produced in the atmosphere). We also illustrate the application to several earth science problems. This is a relatively new area of investigations, using 14C as a tracer, which was made possible by the development of accelerator mass spectrometry (AMS). The availability of the in-situ 14C variety has enormously enhanced the overall scope of 14C as a tracer (singly or together with in-situ-produced 10Be), which eminently qualifies it as a unique tracer for studying earth sciences.


2020 ◽  
Vol 499 (4) ◽  
pp. 5334-5362
Author(s):  
Catriona A Sinclair ◽  
Mark C Wyatt ◽  
Alessandro Morbidelli ◽  
David Nesvorný

ABSTRACT Recent advances in our understanding of the dynamical history of the Solar system have altered the inferred bombardment history of the Earth during accretion of the Late Veneer, after the Moon-forming impact. We investigate how the bombardment by planetesimals left-over from the terrestrial planet region after terrestrial planet formation, as well as asteroids and comets, affects the evolution of Earth’s early atmosphere. We develop a new statistical code of stochastic bombardment for atmosphere evolution, combining prescriptions for atmosphere loss and volatile delivery derived from hydrodynamic simulations and theory with results from dynamical modelling of realistic populations of impactors. We find that for an initially Earth-like atmosphere, impacts cause moderate atmospheric erosion with stochastic delivery of large asteroids, giving substantial growth (× 10) in a few ${{\ \rm per\ cent}}$ of cases. The exact change in atmosphere mass is inherently stochastic and dependent on the dynamics of the left-over planetesimals. We also consider the dependence on unknowns including the impactor volatile content, finding that the atmosphere is typically completely stripped by especially dry left-over planetesimals ($\lt 0.02 ~ {{\ \rm per\ cent}}$ volatiles). Remarkably, for a wide range of initial atmosphere masses and compositions, the atmosphere converges towards similar final masses and compositions, i.e. initially low-mass atmospheres grow, whereas massive atmospheres deplete. While the final properties are sensitive to the assumed impactor properties, the resulting atmosphere mass is close to that of current Earth. The exception to this is that a large initial atmosphere cannot be eroded to the current mass unless the atmosphere was initially primordial in composition.


Author(s):  
Andrew P Jephcoat ◽  
M. Ali Bouhifd ◽  
Don Porcelli

The present state of the Earth evolved from energetic events that were determined early in the history of the Solar System. A key process in reconciling this state and the observable mantle composition with models of the original formation relies on understanding the planetary processing that has taken place over the past 4.5 Ga. Planetary size plays a key role and ultimately determines the pressure and temperature conditions at which the materials of the early solar nebular segregated. We summarize recent developments with the laser-heated diamond anvil cell that have made possible extension of the conventional pressure limit for partitioning experiments as well as the study of volatile trace elements. In particular, we discuss liquid–liquid, metal–silicate (M–Sil) partitioning results for several elements in a synthetic chondritic mixture, spanning a wide range of atomic number—helium to iodine. We examine the role of the core as a possible host of both siderophile and trace elements and the implications that early segregation processes at deep magma ocean conditions have for current mantle signatures, both compositional and isotopic. The results provide some of the first experimental evidence that the core is the obvious replacement for the long-sought, deep mantle reservoir. If so, they also indicate the need to understand the detailed nature and scale of core–mantle exchange processes, from atomic to macroscopic, throughout the age of the Earth to the present day.


2012 ◽  
Vol 25 (1) ◽  
pp. 49-71 ◽  
Author(s):  
Paul White

ArgumentDarwin's narrative of the earthquake at Concepción, set within the frameworks of Lyellian uniformitarianism, romantic aesthetics, and the emergence of geology as a popular science, is suggestive of the role of the sublime in geological enquiry and theory in the early nineteenth century. Darwin's Beagle diary and later notebooks and publications show that the aesthetic of the sublime was both a form of representing geology to a popular audience, and a crucial structure for the observation and recording of the event from the beginning. The awesome spectacle of the earthquake proved in turn the magnitude of the forces at stake in earth history, and helped to make geology an epic conjoining the history of civilization with the history of the earth.


Author(s):  
Ya.S. Yatskiv ◽  

“The Lunar Odyssey” collection presents scientific and popular science works of Ukrainian astronomers about the Moon, a natural satellite of the Earth. The collection consists of five parts devoted to some topical issues of the study of the Moon, including the prospects for the use of its natural resources and the construction of space bases and scientific complexes on its surface. “The Lunar Odyssey” collection is intended for a wide range of readers.


Author(s):  
Robert B. Kerstein, DMD

Since its inception in 1984, Computerized Occlusal Analysis technology has revolutionized both dental Occlusal Science and daily clinical practice, by bringing objective precision measurement to the largely subjectively analyzed Dental Medicine discipline of Occlusion. The evolution of this technology has required much iteration over the past 30 years beginning with T-Scan I, then T-Scan II for Windows®, to T-Scan III with Turbo recording, to the present day version known as T-Scan 8. Numerous authors since the mid-1980s have studied the various T-Scan versions, which inspired the manufacturer to improve the hardware and its recording sensors to be more accurate, repeatable, and precise. The software has also evolved such that the present day T-Scan 8 includes many high-tech measurement tools that aid the clinician in diagnosing and treating a wide range of occlusal abnormalities. This chapter's specific aims are to detail the evolution of the differing T-Scan system versions while describing the many scientific studies that inspired important system improvements to the T-Scan's accuracy and repeatability from version to version.


2013 ◽  
Vol 68 (2) ◽  
pp. 81-93 ◽  
Author(s):  
S. Elden

Abstract. This article discusses the way that the German philosopher and mathematician Gottfried Leibniz (1646–1716) made a number of significant contributions to geography. In outlining his contributions as a geologist, palaeontologist, biologist, historian, political theorist and geopolitician, it challenges the straightforward way he is read in geography. Particular focus is on his Protogaea, the Annales Imperii and the Consilium Aegyptiacum, respectively a pre-history of the earth, a chronology of German nobility in the Middle Ages, and a military-strategic proposal to King Louis XIV. Making use of contemporary debates about ways of reading Leibniz, and drawing on a wide range of his writings, the article indicates just how much remains to be discovered about his work.


Author(s):  
Ye. Roslytsky ◽  

This is the first book in Ukrainian popular science literature about the life and career of Serhiy Mykolayovych Vynohradsky, a world-famous Ukrainian scientist, the discoverer of chemosynthesis in a large group of soil microorganisms and the role of the latter in fixing atmospheric nitrogen and the circulation of substances in nature, one of the founders of general and soil microbiology and ecology. The book contains a bibliography of printed works by S.M. Vynohradsky and a list of major publications about the scientist. The publication is illustrated with photographs and portraits of the scientist and his closest students, D.K. Zabolotny and V.L. Omelyansky. The book is intended for a wide range of readers who are interested in the history of science and the contribution of Ukrainian scientists to the treasury of knowledge of world science.


Author(s):  
Svіtlana Rudenko

In the article S.M. Rudenko made an attempt of a comprehensive study of linguocultural semantics of terminal organoleptics – language signs of the peripheral zone of the gluttonic frame, which are a mental analogue of the perceptual characteristics of units of its nuclear zone. Folklore, ethnographic, ethnolinguistic, lexicographic and popular science sources were taken as a material for research. It is emphasized that in order to denote taste reception, modern Ukrainian language has a wide range of absolutely different units – from word to text. The main representatives of the analyzed case are the nominations of taste, smell, appearance, color, design of dishes and products, however, units representing sound, touch, and consistency also play an important role in describing food perception. Their semantics has cultural characteristics. In the course of the study, it was found that semantic features were invested in a special form of expression such as taste sensation, intensity (degree sign of the degree of manifestation or influence of taste omissions), assessment (positive or negative characteristic of taste sensations in terms of personal, subjective criteria; the presence or lack of evidence); syncretism (indivisibility) of sensory perception of taste and tactile sensations, taste and smell. Phraseological units of the Ukrainian language, which include gustative elements, are used not only in the language of gluttony, but also in the process of nominating the concepts of other areas of human activity, in particular the highest emotional. Text units, which reflect the model of color matching of dishes to the consumer’s taste expectations are of great importance. The obtained results make it possible to make a conclusion that the semantics of organoleptics in the gluttonic frame reflect both taste preferences developed over the centuries-old history of the Ukrainian people and its specific worldview character.


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