Large local-scale isotopic heterogeneities of the MORB source mantle: A case study on the SWIR

2006 ◽  
Vol 70 (18) ◽  
pp. A585 ◽  
Author(s):  
N. Shimizu ◽  
J.M. Warren ◽  
C. Sakaguchi ◽  
E. Nakamura ◽  
H.J.B. Dick
Keyword(s):  
Local Scale ◽  
Source Mantle ◽  
Morb Source

scholarly journals How emissions from cruise ships in the port of Naples changed in the COVID-19 lock down period

2021 ◽  
pp. 147509022110284
Author(s):  
Luigia Mocerino ◽  
Franco Quaranta
Keyword(s):  
Local Scale ◽  
The Other ◽  
Cruise Ships ◽  
Global Pandemic ◽  
Transportation Sector ◽  
Reduction Of Emissions ◽  
The One ◽  
Global And Local

The scope of this work is to try to quantify the reduction of emissions due to COVID-19; an analysis covering the entire port of Naples will be presented. The explosion of the global pandemic from SARS-CoV-2 led to the adoption of local and global countermeasures aimed at containing contagions. The transportation sector, and in particular the passenger moving sector, was deeply affected; this almost total block of movements between regions and countries if, on the one hand, seriously slowed the economy, on the other, it drastically reduced the emissions on a global and local scale. In this work, the case study of the cruise ships berthed at the Maritime Station (Stazione Marittima) in the port of Naples is examined. The traffic of cruise ships during the lockdown and in the immediately following months was analysed and compared first with respect to the calendars scheduled for the same period and then with respect to the same months of 2019. The reduction in number of cruise ships and passengers were analysed and compared to the previous trends. The vessels collected, for 2019 and 2020 (both those that arrived and those that suffered the effects of the movement block) were subsequently characterized in terms of power and speed. Finally, an estimate of the emissions of NOX, SOX, CO2 produced and saved was carried out. The 2020 results will be compared with the hypothetical emissions that would have occurred in the absence of the lockdown and with those of the same period of the previous year.

scholarly journals A high resolution multimedia environmental monitoring project at regional and local scale: the Campania region (southern Italy) case study

2021 ◽  
Author(s):  
Benedetto De Vivo ◽  
Stefano Albanese ◽  
Annamaria Lima ◽  
Domenico Cicchella ◽  
David Hope ◽  
...  
Keyword(s):  
High Resolution ◽  
Environmental Monitoring ◽  
Southern Italy ◽  
Local Scale ◽  
Campania Region

scholarly journals Identification of chondritic krypton and xenon in Yellowstone gases and the timing of terrestrial volatile accretion

2020 ◽  
Vol 117 (25) ◽  
pp. 13997-14004 ◽  
Author(s):  
Michael W. Broadley ◽  
Peter H. Barry ◽  
David V. Bekaert ◽  
David J. Byrne ◽  
Antonio Caracausi ◽  
...  
Keyword(s):  
Mantle Plume ◽  
Noble Gases ◽  
Noble Gas ◽  
Mid Ocean Ridge ◽  
Mantle Sources ◽  
Source Mantle ◽  
Morb Source ◽  
Protosolar Nebula ◽  
Ocean Ridge ◽  
Yellowstone Caldera

Identifying the origin of noble gases in Earth’s mantle can provide crucial constraints on the source and timing of volatile (C, N, H2O, noble gases, etc.) delivery to Earth. It remains unclear whether the early Earth was able to directly capture and retain volatiles throughout accretion or whether it accreted anhydrously and subsequently acquired volatiles through later additions of chondritic material. Here, we report high-precision noble gas isotopic data from volcanic gases emanating from, in and around, the Yellowstone caldera (Wyoming, United States). We show that the He and Ne isotopic and elemental signatures of the Yellowstone gas requires an input from an undegassed mantle plume. Coupled with the distinct ratio of129Xe to primordial Xe isotopes in Yellowstone compared with mid-ocean ridge basalt (MORB) samples, this confirms that the deep plume and shallow MORB mantles have remained distinct from one another for the majority of Earth’s history. Krypton and xenon isotopes in the Yellowstone mantle plume are found to be chondritic in origin, similar to the MORB source mantle. This is in contrast with the origin of neon in the mantle, which exhibits an isotopic dichotomy between solar plume and chondritic MORB mantle sources. The co-occurrence of solar and chondritic noble gases in the deep mantle is thought to reflect the heterogeneous nature of Earth’s volatile accretion during the lifetime of the protosolar nebula. It notably implies that the Earth was able to retain its chondritic volatiles since its earliest stages of accretion, and not only through late additions.

scholarly journals Multifunctionality of Organic Farming: Case Study from Southern Poland

2016 ◽  
Vol 8 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Ruta Śpiewak
Keyword(s):  
Organic Farming ◽  
Social Resources ◽  
Local Scale ◽  
Local Communities ◽  
Economic Welfare ◽  
Process Of Change ◽  
Southern Poland ◽  
The Social ◽  
Organic Farmers

Abstract The main goal of this article is to answer the question whether organic farming, which is developing in some parts of Poland, can be considered as a form of multifunctional farming and contribute so to non-commodity functions and the process of change in a particular territory of given areas. The analyses are based on data obtained from 2013 of several points in the south of Poland representing a cluster of organic market oriented farmers. The results show that namely market organic farming may serve as multifunctional one, but only under certain conditions and for a specific type of farming. Through specific functions, organic farming facilitates the changes, primarily on a local scale. The existence of a strong integrated organic farming sector might influences development and change, resulting in not only the improvement of economic welfare of organic farmers, but also of whole local communities, strengthening the bonds amongst them, mobilising the social resources.

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