scholarly journals Establishing calculation method for chemical composition of primitive magma in the Cenozoic in South Central coast region and the adjacent continental shelf of Vietnam

2019 ◽  
Vol 19 (3B) ◽  
pp. 55-70
Author(s):  
Le Duc Anh ◽  
Nguyen Hoang ◽  
Phung Van Phach ◽  
A. I. Malinovskii ◽  
Renat Shakirov ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Continental Shelf ◽  
Calculation Method ◽  
Volcanic Eruptions ◽  
Magma Source ◽  
Central Coast ◽  
South Central ◽  
Primitive Magma ◽  
Temperature And Pressure ◽  
Coast Region

The calculations which determine the chemical composition of the primitive magma are simple but they show changes in the temperature and pressure states of the magma source. The method is based on the addition of the chemical composition of the Olivine to the major element composition of the eruptive rocks which follows the formula: Ci = Ci-1+ 0.1 * Ci-1Ol. In accordance with the characteristics of the study area, we have made new additions to the calculation method. The calculation results are highly accurate when tested and compared with the chemical composition of the eruptive rocks. The chemical composition of the primitive magma solution is used to calculate the temperature and pressure states in the magma source. The results show that there is a difference in temperature and pressure in the source at different tectonic positions in the study area. Accordingly, the South Central coast region and the adjacent continental shelf are divided into two main types of eruptions. The first type of volcanic eruptions occurs at locations where major faults intersect and they are located north of the study area. The second type of volcanic eruptions in the form of a single volcano is located to the south of the study area and the southeastern continental shelf, and occurs in intracontinental extension structure.

scholarly journals Joint destination marketing in the South Central Coast region of Viet Nam

2021 ◽  
Author(s):  
◽  
Thi Phuong Lan Nguyen
Keyword(s):  
Decision Making ◽  
Tourism Industry ◽  
Destination Marketing ◽  
Viet Nam ◽  
The South ◽  
Central Coast ◽  
South Central ◽  
Marketing Decision ◽  
Marketing Activities ◽  
Coast Region

<p>The tourism industry of Viet Nam has developed rapidly over the last two decades. However, more attention must be given to destination marketing, especially joint destination marketing, if the sector is to continue to expand. To date there has been little research on joint destination marketing, especially in developing countries and transitional economies like Viet Nam. This study attempts to fulfil this gap by examining the joint destination marketing activities of the eight South Central Coast provinces of Viet Nam. The study has three objectives: (1) to examine the nature and extent of current joint destination marketing activities, (2) to analyze the factors that influence joint destination marketing decision-making, and (3) to investigate the destination marketing relationships between local destination marketing organizations(DMOs) of the eight provinces.  The South Central Coast was chosen as the study site as it is the most dynamic tourism development region of Viet Nam. The study triangulated both primary and secondary data. The primary data was collected mainly from semi-structured in-depth interviews with DMO representatives. This was complemented by the content analysis of official tourism websites.  Four sets of key findings result from this research. First, the South Central Coast provinces currently conduct destination marketing more individually than jointly. However, all provinces of the region practise a certain mix of both individual and joint marketing activities. Local DMOs also develop competitive and cooperative relationships with other counterpart DMOs. Second, joint destination marketing is an emerging and increasingly common trend in the region and is characterized by different patterns of cooperative behaviour and levels of involvement. Third, joint destination marketing decision-making is influenced by various factors, including preconditions, benefits, drawbacks, motives and barriers. These factors are inter-related, which in turn creates tensions for DMO in their joint destination marketing decision-making. Fourth, in the South Central Coast region, joint destination marketing activities occur more commonly at a sub-regional scale than at the scale of the whole region. Furthermore, these sub-region cooperative models involve provinces located in other regions. Decisive factors in destination marketing partnership formation include proximity, convenient transportation, mutual benefits, similar target markets and compatibility of tourism products.  The study concludes by highlighting the need to establish a regional tourism coordinating organization to facilitate joint actions and cooperative interrelationships between provinces. There is also much room left in for further joint destination marketing research.</p>

scholarly journals SUSTAINABLE DEVELOPMENT OF THE SEA-ISLAND TOURISM IN SOUTH CENTRAL COAST OF VIETNAM

2020 ◽  
Vol 5 (4) ◽  
Author(s):  
Nguyen Thi Quyet
Keyword(s):  
Sustainable Development ◽  
Economic Development ◽  
Economic Sector ◽  
The South ◽  
Central Coast ◽  
The Sustainable Development ◽  
South Central ◽  
Socio Economic Development ◽  
Coast Of Vietnam ◽  
Coast Region

<p>Located in the middle position of the country, all provinces/cities in the South Central Coast border the sea. With a total coastline length of 1,430 km, accounting for 43.8% of the whole country's coastline (3,260 km), the sea and island tourism in the South Central Coast is now considered a spearhead economic sector, which plays an important role in socio-economic development of this area. In this article, the authors have deeply analyzed the situation and the issues in developing the sea and island tourism in the South Central Coast region from 2010 up to now. Thence, findings lead to important practical suggestions to promote the sustainable development of the sea and island tourism in the South Central Coast in the coming time.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0616/a.php" alt="Hit counter" /></p>

scholarly journals Joint destination marketing in the South Central Coast region of Viet Nam

2021 ◽  
Author(s):  
◽  
Thi Phuong Lan Nguyen
Keyword(s):  
Decision Making ◽  
Tourism Industry ◽  
Destination Marketing ◽  
Viet Nam ◽  
The South ◽  
Central Coast ◽  
South Central ◽  
Marketing Decision ◽  
Marketing Activities ◽  
Coast Region

<p>The tourism industry of Viet Nam has developed rapidly over the last two decades. However, more attention must be given to destination marketing, especially joint destination marketing, if the sector is to continue to expand. To date there has been little research on joint destination marketing, especially in developing countries and transitional economies like Viet Nam. This study attempts to fulfil this gap by examining the joint destination marketing activities of the eight South Central Coast provinces of Viet Nam. The study has three objectives: (1) to examine the nature and extent of current joint destination marketing activities, (2) to analyze the factors that influence joint destination marketing decision-making, and (3) to investigate the destination marketing relationships between local destination marketing organizations(DMOs) of the eight provinces.  The South Central Coast was chosen as the study site as it is the most dynamic tourism development region of Viet Nam. The study triangulated both primary and secondary data. The primary data was collected mainly from semi-structured in-depth interviews with DMO representatives. This was complemented by the content analysis of official tourism websites.  Four sets of key findings result from this research. First, the South Central Coast provinces currently conduct destination marketing more individually than jointly. However, all provinces of the region practise a certain mix of both individual and joint marketing activities. Local DMOs also develop competitive and cooperative relationships with other counterpart DMOs. Second, joint destination marketing is an emerging and increasingly common trend in the region and is characterized by different patterns of cooperative behaviour and levels of involvement. Third, joint destination marketing decision-making is influenced by various factors, including preconditions, benefits, drawbacks, motives and barriers. These factors are inter-related, which in turn creates tensions for DMO in their joint destination marketing decision-making. Fourth, in the South Central Coast region, joint destination marketing activities occur more commonly at a sub-regional scale than at the scale of the whole region. Furthermore, these sub-region cooperative models involve provinces located in other regions. Decisive factors in destination marketing partnership formation include proximity, convenient transportation, mutual benefits, similar target markets and compatibility of tourism products.  The study concludes by highlighting the need to establish a regional tourism coordinating organization to facilitate joint actions and cooperative interrelationships between provinces. There is also much room left in for further joint destination marketing research.</p>

Aspidistra thuongiana (Asparagaceae, Nolinoideae), a new species from the South Central Coast region of Vietnam

Phytotaxa ◽  
2021 ◽  
Vol 496 (3) ◽  
pp. 261-268
Author(s):  
VAN THE PHAM ◽  
VAN CANH NGUYEN ◽  
LONG KE PHAN ◽  
THANH THI VIET TRAN ◽  
VAN KHUONG NGUYEN ◽  
...  
Keyword(s):  
New Species ◽  
Molecular Characterization ◽  
The South ◽  
Central Coast ◽  
Yellow Flower ◽  
South Central ◽  
Bright Yellow ◽  
A New Species ◽  
Coast Region

Aspidistra thuongiana is described and illustrated as a new species from the South Central Coast region of Vietnam. The new species has bright yellow flower and a slender pistil with a minute stigma. It is morphologically close to A. longipedunculata, but differs in shorter peduncle, bowl-shaped (vs. campanulate) perigone, shorter ovate (vs. oblong) erect to spreading (vs. recurved) perigone lobes and stamens inserted at the base (vs. middle) of perigone tube. Data on nuclear 5S-NTS region of the new species are provided, aimed to serve as a molecular characterization for comparison with its congeners.

BEGONIA LECONGKIETII (SECT. PETERMANNIA), A NEW SPECIES FROM MOUNT DẦU, SOUTH CENTRAL COAST REGION, VIETNAM

2018 ◽  
Vol 75 (2) ◽  
pp. 167-172
Author(s):  
N.-S. Lý ◽  
C.-I. Peng ◽  
M. Hughes
Keyword(s):  
New Species ◽  
Habitat Quality ◽  
Small Area ◽  
Critically Endangered ◽  
Endemic Plant ◽  
Central Coast ◽  
Area Of Occupancy ◽  
South Central ◽  
A New Species ◽  
Coast Region

A new species of Begonia (B. lecongkietii N.S.Lý & M.Hughes) is described from Mount Dầu in the South Central Coast Region, Vietnam, an area with an abundance of recently described endemic plant taxa. The new species is allied to Begonia lamxayana Souvann., which occurs 600 km away in Laos, differing chiefly in having larger villose tepals with an undulate margin and larger androecium with 86–116 (versus 20–30) stamens. Begonia lecongkietii is considered Critically Endangered, owing to its small area of occupancy and decline of habitat quality.

scholarly journals Characterizing the spatial distribution of coral reefs in the South-Central Coast region of Viet Nam using Planetscope imagery

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12413
Author(s):  
Khanh V. Nguyen ◽  
Vinh C. Duong ◽  
Kinh T. Kieu ◽  
Thuong V. Tran ◽  
Cho-ying Huang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Coral Reefs ◽  
Coral Cover ◽  
Viet Nam ◽  
Live Coral ◽  
The South ◽  
Central Coast ◽  
South Central ◽  
Live Coral Cover ◽  
Coast Region

This study aims to understand the spatial distribution of coral reefs in the central region of Viet Nam. We classified live coral cover in Son Tra Peninsula (ST) and Cu Lao Cham Island (CLC) in the South-Central Coast Region of Viet Nam using the Maximum Likelihood Classifier on 3 m Planetscope imagery. Confusion matrices and the accuracy of the classifier were assessed using field data (1,543 and 1,560 photographs in ST and CLC, respectively). The results showed that the reef’s width ranged from 30 to 300 m across the study site, and we were able to detect live coral cover across a depth gradient of 2 to 6 m below the sea surface. The overall accuracies of the classifier (the Kappa coefficient) were 76.78% (0.76) and 78.08% (0.78) for ST and CLC, respectively. We found that 60.25% of coral reefs in ST were unhealthy and the live coral cover was less than 50%, while 25.75% and 11.46% of those in CLC were in good and excellent conditions, respectively. This study demonstrates the feasibility of utilizing Planetscope imagery to monitor shallow coral reefs of small islands at a high spatial resolution of 3 m. The results of this study provide valuable information for coral reef protection and conservation.

Chemical Composition of Ice Containing Tephra Layers in the Byrd Station Ice Core, Antarctica

1988 ◽  
Vol 30 (3) ◽  
pp. 315-330 ◽  
Author(s):  
Julie M. Palais ◽  
Philip R. Kyle
Keyword(s):  
Chemical Composition ◽  
Silicate Glass ◽  
Residence Time ◽  
Volcanic Ash ◽  
Global Climate ◽  
Ice Core ◽  
Volcanic Eruptions ◽  
Tephra Layers ◽  
The Antarctic ◽  
Hydrolysis Of

The chemical composition of ice containing tephra (volcanic ash) layers in 22 sections of the Byrd Station ice core was examined to determine if the volcanic eruptions affected the chemical composition of the atmosphere and precipitation in the vicinity of Byrd Station. The liquid conductivity, acidity, sulfate, nitrate, aluminum, and sodium concentrations of ice samples deposited before, during, and after the deposition of the tephra layers were analyzed. Ice samples that contain tephra layers have, on average, about two times more sulfate and three to four times more aluminum than nonvolcanic ice samples. The acidity of ice samples associated with tephra layers is lowered by hydrolysis of silicate glass and minerals. Average nitrate, sodium, and conductivity are the same in all samples. Because much of the sulfur and chlorine originally associated with these eruptions may have been scavenged by ash particles, the atmospheric residence time of these volatiles would have been minimized. Therefore the eruptions probably had only a small effect on the composition of the Antarctic atmosphere and a negligible effect on local or global climate.

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