Palynology of Miocene sediments in Brunei Darussalam: first SEM investigations of pollen and spores, and their taxonomy and palaeoenvironmental interpretation

2021 ◽  
Author(s):  
Amajida Roslim ◽  
Antonino Briguglio ◽  
László Kocsis ◽  
Sulia Goeting ◽  
Christa-Ch. Hofmann
Keyword(s):  
Brunei Darussalam ◽  
Pollen And Spores

Addressing mixed facies interpretation difficulties by coupling sedimentary data with ichnofacies and microfossil data: an example from several paralic deposits in Brunei Darussalam.

2021 ◽  
Author(s):  
Amajida Roslim ◽  
Antonino Briguglio ◽  
László Kocsis ◽  
Sulia Goeting
Keyword(s):  
Water System ◽  
Delta Front ◽  
Shallow Marine ◽  
Brunei Darussalam ◽  
Trophic Resources ◽  
Sediment Types ◽  
Process System ◽  
Shallow Water System ◽  
Pollen And Spores ◽  
Calcareous Microfossils

<p>The geology of a depositional system can mostly be described by looking at sedimentary structures and sedimentary composition. However, in areas of complex shoreline mixed-process system (influenced by fluvial-tides-marine processes), many factors should be put into consideration. In Brunei, the mixed-sediment types occur extensively. The geology is mainly characterized here by thick Neogene siliciclastic facies ranging from fluvial, tidal and marine sediments deposited during periods of deltaic to shelfal setting, affected also by tectonic events. Due to this, differentiating tide and wave dominated facies is often a major challenge in the region.</p><p>In this study, it is emphasized that in order to support interpretations on these transitional facies, specific factors such as ichnofacies and microfossil content can be considered. Pollen and spores are more expected and useful in rather terrestrial systems, whilst in marine environments dinoflagellates, foraminifera and nannofossils could be convenient if preserved. Foraminifera and ichnofossils have the merit to be great indicators of a variety of sub-environments within the complex shallow water system.</p><p>The methods involve standard outcrop logging of fluvial, tidal and shallow marine outcrops, identifying lithology and key sedimentary features including trace fossils. Clay-rich samples were checked for microfossil content. Laboratory work involved extracting organic (pollen, spores, dinoflagellates) and calcareous (foraminifera, nannofossils) microfossils and documented them with light microscope (LM), stereo microscope, and Scanning Electron Microscope (SEM).</p><p>The results revealed that the most common trace fossil assemblages are the <em>Ophiomorpha, Cruziana</em> and <em>Skolithos</em> ichnofacies, and they refer to proximal marine settings. Among the calcareous microfossils recovered were very few coccolithophorids (<em>Sphenolithus abies</em> and<em> Sphenolithus moriformis</em>), which indicate very rare holomarine conditions, while the following benthic foraminifera genera were identified: <em>Ammonia, Nonion, Elphdium, Elphidiella, Quinqueloculina, Ammobaculites,</em> and <em>Trochammina</em>. Each of these genera have specific environmental requirements concerning hydrodynamics, trophic resources, oxygen content, substrate-type and deltaic influence. Results on pollen and spores, mangrove vegetation is marked by <em>Sonneratia</em> and <em>Rhizophora</em>-types, mixed-dipterocarp by <em>Shorea</em> spp., while peat swamp by <em>Verrucatosporites usmensis</em> and <em>Osmunda</em> sp.. Besides few dinoflagellate cysts (<em>Achomosphaera </em>sp., cf. <em>Exosphaeridium</em> sp., cf. <em>Operculodinium</em> sp., gen indet., <em>Lingulodinium? pycnospinosum</em> and <em>Tuberculodinium vancampoae</em>) and two acrtitarch taxa (<em>Cymatiosphaera</em> sp. and <em>Cymatiosphaera </em>cf. <em>nuda</em>) were found. These findings indicate incomplete sets of parasequences with palaeoenvironments of mixed shallow marine conditions. Mangrove pollen retrieved within tidal sediments indicates mangrove-dominated tide-influenced shoreline, while shoreline with diverse ichnofossils show coastal area connected to wave-dominated upper shoreface/ delta front. The calcareous foraminifera and nannofossil differentiate sediments belonging to lower shoreface to offshore/ prodelta deposits.</p>

HISTORY AND DEVELOPMENT OF TAFSIR IN SOUTHEAST ASIA (Indonesia, Malaysia, Brunei Darussalam, Singapore and Thailand)

2018 ◽  
Vol 1 (2) ◽  
pp. 171
Author(s):  
Amirulloh Sain Asari
Keyword(s):  
Southeast Asia ◽  
Academic World ◽  
Brunei Darussalam

This paper describes the history and development of tafsir in Southeast Asia, namely Indonesia, Malaysia, Brunei Darusalam, Singapore and Thailand, aimed at providing a new discourse to the academic world, that Islam has another treasure in Far Asia, which is known as a pluralistic country because Islam entered in those countries without any wars. And to provide information related the books, author influence, and method of their tafsir in general.Keyword: History, Development Tafsir, and Southeast Asia 

Novitates Bruneienses, 9. A synopsis of Epirixanthes (Polygalaceae) in Brunei Darussalam and notes on species elsewhere

2017 ◽  
Vol 69 (2) ◽  
pp. 179-187
Author(s):  
M. Dančák ◽  
M. Hroneš ◽  
R.S. Sukri ◽  
F. Metali ◽  
A.A> Joffre
Keyword(s):  
Brunei Darussalam

Bottled Water Industry in Brunei Darussalam: The Unregulated Sector?

2020 ◽  
Vol 2 (2) ◽  
pp. 149-165
Keyword(s):  
Bottled Water ◽  
Water Industry ◽  
Valuable Resource ◽  
Water Supplies ◽  
The Public ◽  
Available Water ◽  
Brunei Darussalam ◽  
Preliminary Research ◽  
Water Companies ◽  
The Government

Brunei is seeing a proliferation of bottled companies established in the country in the last decade, driven by cheap water supplies, easily available water filtering systems and demand by the public. This research found 16 ‘companies,’ ‘producing’ and distributing over 34 brands of bottled waters in the country. Since bottled water industry is ‘popular,’ it is necessary to understand how the industry is being monitored and regulated by the government as it involved products consumed by the public. Since most of the bottled water companies use water drawn from the pipes supplied by the government, it is also important to understand how the government is protecting, monitoring and regulating this valuable resource from exploitation. This paper is a preliminary research on the bottled water industry in Brunei Darussalam.

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