Summary: Fieldtrip Activity of GITMSC OF AAPG by Mr. Rasyid Mustafa (Lecturer at ITM), Takengon, Aceh, Indonesia, April 03rd, 2016

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Fieldtrip Activity of GITMSC OF AAPG by Mr. Rasyid Mustafa (Lecturer at ITM), Takengon, Aceh, Indonesia, April 03rd, 2016:

Fieldtrip that held on 03rd April, 2016 at Takengon, Aceh, Indonesia that have a title “Macro Fossil Identification and Determination of Depositional Environment” , followed by 42 students Geology, lecturer and include commitee of GITMSC OFF AAPG.The event that held by Executive Geology Institute Technology of Medan Student Chapter of American Association of Petroleum Geologists, this programme is held caused less knowledge about Communications Engineering Geology Applications in Macro Fossil Identification and Determination of Depositional Environment. In this event as speakers is Mr.Rasyid Mustafa as a lecturer in Istitute Technology of Medan and also as a senior geologist.

Macrofossils are preserved organic remains large enough to be visible without a microscope. Most fossils discussed in the article Fossil are macrofossils. The term macrofossil stands in opposition to the term microfossil. Microfossils, by contrast, require substantial magnification for evaluation by fossil-hunters or professional paleontologists. As a result, most fossils observed in the field and most “museum-quality” specimens are macrofossils and to fossilized remains of animals or plants should be immediately covered with sediment. By experts distinguish several kinds of fossils. There was the usual rock fossils, fossils formed in amber, fossils ter, such as that formed in the La Brea tar wells in California. Animal or plant that was presumed to be extinct, but there are still so-called living fossils. The most common fossil skeleton is left as shells, teeth and bones. Soft tissue fossils are very rare.

Fossilization is a process of accumulation of remains of animals or plants that accumulate in sediments or sediments either experiencing preservation as a whole, in part or in trace amounts, living fossil is a term used a species of life that resembles a species known only from fossils. Some include a living fossil coelacanth and ginkgo trees. Living fossils can also refer to a living species that do not have any other close species or a small group of close species that do not have other close species. Examples of this last criterion is the nautilus. Most fossils are found in sedimentary rocks (sediments) whose surface is open. Rock that contains many fossils called fosiliferus. Types of fossils contained in the rocks depending on the type of environment scientifically sediments deposited. Marine sediments, from the shoreline and shallow seas, usually contains the most fossils.

Fossils formed from the process of the destruction process relics of once-living organisms. This often happens when a plant or animal is buried in oxygen-free environment. The existing fossil rarely preserved in its original form. In some cases, the mineral content change chemically or their remnants dissolved all so it was replaced with mold. Illustration that describes the process of living beings that died were buried, become fossilized, and is found and the study of the remains of ancient organisms either fossils or traces of life called paleontology and for the other sciences, there is some science that is closely related to paleontology, among others:

  • Biostratigraphy

Biostratigraphy is the science of determining the age of rocks using fossils contained therein. Usually aim for the correlation, which indicates that a particular horizon in a geological section represent the same time period with another horizon in some other parts. Fossil useful because sediments of the same age can look completely different because of local variations in sedimentation environment. For example, a portion can be composed of clay and marl, while others are more limestone Kapuran, but if the content of the fossil species are similar, both these sediments may have been deposited at the same time. Ammonites, graptolites and trilobites are index fossils are widely used in biostratigraphy. Microfossils, such as acritarchs, chitinozoa, conodonts, cysts dinoflagellates, pollen, Sapura and foraminifera are also often used. Different fossils can function well on different aged sediments; eg trilobites, especially useful for old Cambrian sediments. To function properly, the fossils used must be widespread geographically, so that it can be in different places-many. They must also be short-lived as a species, so a period of time in which they can be incorporated into the sediment is relatively narrow, the longer the life time of species, the more inaccurate the correlation, so the fossils are evolving rapidly, such as ammonites, is preferable to form evolved much more slowly , as nautoloid.

  • Chronostratigraphy

Chronostratigraphy is a branch of stratigraphy that studies the life of rock strata in relation to time.

The main purpose of Chronostratigraphy is to arrange the order of precipitation and the settling time of the entire rock in a geological formation, and ultimately, the entire geologic record of Earth.

Standard stratigraphic nomenclature is a system that is based on the time interval Chronostratigraphy paleontology defined by a collection of fossils were recognized (biostratigraphy). Interest Chronostratigraphy is to provide a means for the determination of the age of this fossil collection interval.

  • mikropaleontologi

Mikropaleontologi is a branch of palaeontology that studies microfossils. Microfossils, fossil generally are sized no larger than four millimeters, and generally smaller than one millimeter, so as to learn it takes a light or electron microscope. Fossils that can be studied with the naked eye or with a small magnification power tool, such as a magnifying glass, can be grouped as makrofosil. Strictly speaking, it is difficult to determine whether an organism can be classified as microfossils or not, so there is no size limit is clear.

  • paleobotany

Paleobotany or palaeobotani (from a Greek word meaning old paleon and botany, the science of plants), is a branch of paleontology devoted to learning about plants in the past.

  • paleozoology

Paleozoology or palaeozoology where a branch of paleontology or paleobiology, which aims to find and identify fossils of multicellular systems geology or archeology, to use the fossil in environmental reconstruction and prehistoric ecology.

  • Palynology

Palynology is the study polinomorf current and fossils, including pollen, spores, dinoflagellates, cysts, acritarchs, chitinozoa, and scolecodont, along with particles of organic material and kerogen contained in sediments and sedimentary rocks.

This event can give a lot of opportunities for students to receive more knowledge and enhance their perception outside the classes about knowledge and also training in field of geology. We believe this program is important for those who want to be a geologist. It also give great opportunity to establish a good relationship among industry, AAPG, educational institution and students. Hopefully, this activity done well and will more knowledge to student about Macro Fossil Identification and Determination of Depositional Environment”, and get motivation or inspiration to can join in mining, oil and gas industry.

Support thank’s to AAPG, AAPG Asia Pacific Region, ITM, HMTG”TOBA”ITM, SM-IAGI ITM, and other.

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Summary: Fieldtrip Activity of GITMSC OF AAPG by Mr. Rasyid Mustafa (Lecturer at ITM ), Tanjung Anom and Sunggal, Deli serdang, North Sumatera, Indonesia, March 27th, 2016

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Summary Fieldtrip Activity of GITMSC OF AAPG by Mr. Rasyid Mustafa (Lecturer at ITM ), Tanjung Anom and Sunggal, Deli serdang,  North Sumatera, Indonesia, March 27th, 2016:

Fieldtrip that held on 27th March, 2016 at Tanjung Anom and Sunggal, Deli Serdang, North Sumatera, Indonesia that have a title “Communications Engineering Geology Applications in the Identification and Calculation of Coal Reserves , followed by 45 students Geology, lecturer and include commitee of GITMSC OFF AAPG.The event that held by Executive Geology Institute Technology of Medan Student Chapter of American Association of Petroleum Geologists, this programme is held caused less knowledge about Communications Engineering Geology Applications in the Identification and Calculations of Coal Reserves. In this event as speakers is Mr.Rasyid Mustafa as a lecturer in Istitute Technology of Medan and also as a senior geologist.

Behind the inconsistencies in reported numbers are important distinctions in how we measure the coal underground – and the difference between what exists, and what can be mined. By almost any standards there is a lot of coal beneath the surface of the earth. The highest estimates put it at as much as 14.5 trillion tons. At the current rate of use this much coal would last for well over 2000 years. However, most estimates of the reserves to production ratio, a simple calculation of how long we could use coal at the current rate, fall in the range of 100-250 years. Even more pessimistic are recent studies suggesting that we might only be sure of having enough coal until 2030, or that coal production will peak around 2025 and decline thereafter. While part of this discrepancy is about the fundamental geological question of how much coal is in the ground, most of the difference comes from inconsistency in terminology and definitions and disagreements about economics. This article covers how measurements of coal resources and reserves are measured and described.

Coal-bearing areas, as determined from coal bed maps are to be measured to a precision of 2 percent or less. Such determinations may be made with a planimeter, with graph paper, with equally spaced dots, or with a computer. The most common instrument used for area determinations is the polar planimeter. In recent years the digital electronic planimeter has become increasingly popular. Prior to determining areas with a planimeter, a planimeter factor for acres or hectares, which depends upon the scale of the map used, must be ascertained. This is done according to instructions that accompany the planimeter. A similar factor must be determined if the graph paper technique of determining acreages is employed. After either factor is ascertained, the user is prepared to start measuring areas on the map and to convert the measurements using the appropriate planimeter or graph paper factor into acres or hectares. On many 7.5-minute quadrangles, several dozen to several hundred areas must be measured that are based on the many parameters into which coal-bearing areas can be categorized. These parameters may include thicknesses of coal and overburden; distance from points of coal thickness measurements (reliability categories); quality; physical characteristics; rank, land ownership by Federal, State, Indian, and local governments, companies, individuals, and other nations; county, State, and townships and ranges of the land classification system; quadrangle, coal field, basin, region, and province; legally and environmentally restricted areas, and others as desired.

A planimeter is accurate in measuring map areas ranging from several square inches to 20-30 square inches. Generally, planimetric measurements are repeated several times and then averaged. However, if readings are in disagreement by more than 2 percent, they should be repeated until an agreement of 2 percent, or less, is achieved. Map areas of less than 1 square inch commonly are not as precisely measurable with a planimeter as are larger map areas and must be remeasured and the planimeter vernier read many times to obtain an agreement within a 2-percent error. Estimates of the total coal tonnages in the following resource categories are required, where data are available, for adequate inventorying of county, State, and national coal resources: measured, indicated, inferred, and hypothetical resources; reserve base and inferred reserve base; and original resources and remaining resources. After the area underlain by coal, the average thickness of coal, and the weight of coal per unit volume for each category shown on a coal bed map have been determined, the tonnage can be estimated. The tonnage is estimated by the following formula:

A x B x C = tonnage of coal

where:

A = weighted average thickness of coal in inches, feet, centimeters, or meters,

B = weight of coal per appropriate unit volume in short or metric tons, and

C = area underlain by coal in acres or hectares.

This event can give a lot of opportunities for students to receive more knowledge and enhance their perception outside the classes about knowledge and also training in field of geology. We believe this program is important for those who want to be a geologist. It also give great opportunity to establish a good relationship among industry, AAPG, educational institution and students. Hopefully, this activity done well and will more knowledge to student about Communications Engineering Geology Applications in the Identification and Calculation of Coal Reserves”, and get motivation or inspiration to can join in mining, oil and gas industry.

Support thank’s to AAPG, AAPG Asia Pacific Region, ITM, HMTG”TOBA”ITM, SM-IAGI ITM, and other.

 

Summary: Workshop and Fieldtrip activity by Mr. Maradona Mansyur (Senior Exploration at SANTOS LTD), Medan & Serdang Bedagai 88 Beach, North Sumatera, January 30th – 31st, 2016

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Summary Workshop and Fieldtrip activity by Mr. Maradona Mansyur (Senior Exploration at SANTOS LTD), Medan & Serdang Bedagai 88 Beach, North Sumatera, January 30th – 31st, 2016:

Workshop and Fieldtrip that held on 30th – 31st January 2016 at the seminar room Institute Technology Medan and Serdang Bedagai 88 Beach, North Sumatera, Indonesia that have a title “Two days Workshop and Fieldtrip about Revisiting Shoreline Sedimentation Process and Petrophysics Analysis”, followed by 40 students Geology, Mining (ITM and ISTP), and lecturer from two department.The event that held by Executive Geology Institute Technology of Medan Student Chapter of American Association of Petroleum Geologists, this programme is held caused less knowledge about Revisiting Shoreline Sedimentation Process and Petrophysics Analysis. In this event as speakers is Mr, Maradona Mansyur from PT. SANTOS LTD. This Event is at opens by Faculty Advisor of GITMSC OF AAPG is Ir. Lismawaty MT, with proudly, she is say thank’s for PT. Santos Ltd on come In Institute Technology of Medan for delivery information in really and that bloom to Student Geology and mining so that increase know about oil and gas knowledge especially form oil and gas company.
Sedimentation is the tendency for particles in suspension to settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the forces acting on them: these forces can be due to gravity, centrifugal acceleration, or electromagnetism. In geology, sedimentation is often used as the opposite of erosion, i.e., the terminal end of sediment transport. In that sense, it includes the termination of transport by saltation or true bedload transport. Settling is the falling of suspended particles through the liquid, whereas sedimentation is the termination of the settling process. Sedimentation may pertain to objects of various sizes, ranging from large rocks in flowing water to suspensions. Even small molecules supply a sufficiently strong force to produce significant sedimentation. The term is typically used in geology to describe the deposition of sediment which results in the formation of sedimentary rock, but it is also used in various chemical and environmental fields to describe the motion of often-smaller particles and molecules. This process is also used in the biotech industry to separate cells from the culture media.
Deposition is the geological process in which sediments, soil and rocks are added to a landform or land mass. Wind, ice, and water, as well as sediment flowing via gravity, transport previously eroded sediment, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment. Deposition occurs when the forces responsible for sediment transportation are no longer sufficient to overcome the forces of gravity andfriction, creating a resistance to motion, this is known as the null-point hypothesis. Deposition can also refer to the buildup of sediment from organically derived matter or chemical processes. For example, chalk is made up partly of the microscopic calcium carbonateskeletons of marine plankton, the deposition of which has induced chemical processes (diagenesis) to deposit further calcium carbonate. Similarly, the formation of coal begins with deposition of organic material, mainly from plants, in anaerobic conditions.
A major application of petrophysics is in studying reservoirs to help reservoir engineers and geoscientists understand the rock properties of the reservoir, particularly how pores in the subsurface are interconnected, controlling the accumulation and migration of hydrocarbons.[1] Some of the key properties studied in petrophysics are lithology, porosity, water saturation, permeability and density. A key aspect of petrophysics is measuring and evaluating these rock properties by acquiring well log measurements – in which a string of measurement tools are inserted in the borehole, core measurements – in which rock samples are retrieved from subsurface, and seismic measurements. These studies are then combined with geological and geophysical studies and reservoir engineering to give a complete picture of the reservoir.
While most petrophysicists work in the hydrocarbon industry, some also work in the mining and water resource industries. The properties measured or computed fall into three broad categories: conventional petrophysical properties, rock mechanical properties, and ore quality.
This event can give a lot of opportunities for students to receive more knowledge and enhance their perception outside the classes about development oil and gas company and also training software in workshop event with interactive petrophysic/ IP Petrophysic software. We believe this program is important for those who want to be a geologist. It also give great opportunity to establish a good relationship among industry, AAPG, educational institution and students. Hopefully, this activity done well and will more knowledge to student about “Two days Workshop and Fieldtrip about Revisiting Shoreline Sedimentation Process and Petrophysics Analysis”, and get motivation or inspiration to can join Oil and Gas Company after graduation.

Support thank’s to AAPG, AAPG Asia Pacific Region, ITM, HMTG”TOBA”ITM, SM-IAGI ITM, and other.

Summary GITMSC Fieldtrip Activity April 2012 : “Field Geology Learning : Case Gunung Tua Geology”

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This fieldtrip submitted by Mr. Yudi Satria Purnama from PT. Geosain Delta Andalan (PT. GDA) Consulting and Mr. Purnama Suandhi from PT. Exploration Think Tank Indonesia (PT. ETTI) Consultant and followed by 30 participants (Geological student ITM (Member GITMSC Of AAPG). This activity held on April, 14th-15th 2012 with venue in Gunung Tua- Padang Bolak Julu Area, North Padang Lawas Regency, North Sumatra..

Gunung Tua area is in North Sumatra Basin. We know North Sumatra Basin have regional sedimentary rock there depositional in in some depositional environtment as Fluvuial, Marine and Delta (Learning Sedimentology). In some different depositional environtment in Gunung Tua area, it must to make the different condition. So that’s all, we need to learning Gunung Tua geological condition.

In geological condition area or a outcrop we need to description all that to know it’s story in past time. To description or overview a sedimentary rock outcrop, we can use two type description such as Description in General and Description in Detail (Ant view and Bird view) (PT. GDA and ETTI Consultant).

In fieldtrip Gunung tua in one days ago, all student can be description all outcrop which include some formation such as Telisa Fm, and Sihapas Fm. In general description, a geologist must be looking a outcrop in larger. We must be do such as : write outcrop name, date and location, we must write the outcrop coordinat, and sketch or drawing in other dimension. In general description, a geologist must be looking a outcrop in detail. In bird view, we must write geometry or dimension outcrop, unit lithology, rythm outcrop such as fining up ward, coarsening up ward, blocky, thickening up ward, thining up ward, etc), and sedimentary structure also contact lithology. While in ant view, we must description that outcrop in detail as petrology sedimentary rock description. In  finally we can analyze deposition envirentment and name rock in outcrop that we see.

For Download The Field Guide Observation Card and Comparator Outcrop Description from Fieldtrip activity ago, please klik The Field Guide Observation Card and Comparator Outcrop Description

April First Activity..!!!

Field Trip Gunung Tua : Field Geology Learning : Case Gunung Tua Geology

This Fieldtrip will be held on 14st – 15stApril 2012

Available Speaker : Mr. Yudi Satria Purnama and Mr. Purnama Suandhi ( ETTI & GDA Consultant )

Fee Only IDR 210.000,

Offered facilities :  Certificate, Transportation, Accomodation and knowldge and information.

All about that, what are you waiting friends and don’t make your time vain wasted..

Let’s Registration and Enjoy the Knowledge….