Subject: Job
From: Ivan Andrija Stojanovic
Date: Wed, 06 Nov 1996 16:12:34 -0200
To whom it may concern.
I would be most gratevful if you could inform me available positions in
the area of geology.
CURRICULUM VITAE
Personal details
Name: Ivan Andrija Stojanovic
Date of birth: February 4, 1969
Home address: Medvedgradska 45a, 10 000 Zagreb, Croatia
Telephone: ++/385/1/272126
e-mail: Ivan.Andrija.Stojanovi@(public.srce.hr
Martial status: Single
Nationality: Croatian
Education
1983 Primary school
1987 Secondary school for electronics
1995 graduated from the Faculty of science, Institute of Geology,
major: geology.
1995 Summer school of Ecology and Environmental Training, Kosice,
Slovakia.
1995 postgraduate study at The University of Zagreb, Faculty of
science.
Working experience
1996 Croatian Radio Television, Department for research and developing
new
technologies -- developing database of digitized model of terrain of
Croatian Republic. (current occupation)
1995 Institute of Geology of Zagreb
1994 I participate in the state project: Biological data basis and
GIS,
developing GIS at the university and educating personnel necessary for
further development.
1990 Instructor of sailing and windsurfing in Summer camps in USA.
Prizes
1995 Scholarship for Summer school of Ecology and Environmental
Training, Kosice, Slovakia, by UNEP UNESCO.
Computer literacy
OS MS DOS, Windows 3.x, Windows 95, Windows NT, UNIX
APP MS Office 4.3 & 95, MicroStation, System 9, ArcInfo.
Associations
Croatian Geological Society
Ecoadriatic -- member of the Managing Board and the conductor of the
section for Environmental Geology.
Publications
* Upper-Cretaceous sedimentation of Adriatic carbonate platform and the
correlation with the contemporaneous explored layers. Faculty of
Science. Degree work. 1995. Zagreb.
* GIS in Croatia Today. Geological News. 1996. Vol. 32. sv. 1-2. Zagreb.
* Lithostratigraphic Map of the Murter Island and GIS. In print. Zagreb.
* Geology of the Murter Island and its Hinterland between Pirovac and
Tribunj. In print. Zagreb.
Licenses
1989 Automobile
1994 License for boat drive (Skipper)
Languages
English -- fluent spoken and written
German -- slight
Italian -- slight
October 9, 1996
Ivan Andrija Stojanovic
Subject: Re: Question about pegmatite (??)
From: alintatd@iinet.net.au (AlintaGas)
Date: 6 Nov 1996 14:38:30 GMT
In article <55pagt$irm@opera.iinet.net.au>, alintatd@iinet.net.au says...
>
>In article <327B779F.7B53@senda.ari.es>, ace@servimail.ari.es says...
>>
>>Hello. First of all, I have to tell that I know practically nothing
>>about geology, so maybe my question looks like an stupid one. Someone
>>who is interested in this science has asked me if I knew the answer (the
>>answer is no), and I've thought that maybe someone knows the answer in
>>here. Well, here comes: is pegmatite (in Spanish: pegmatita) a plutonic
>>(in Spanish: plutonica) or a metamorphic (in Spanish: metamorfica) rock?
>>Sorry, but I haven't found these words in my Spanish to English
>>dictionary, so I have had to translate the names by myself. Thanks for
>>reading.
>>
>>Angel
>>
>>ps: use email if you know the answer to my question.
>>
>>It's me again (Jonathan Bishop); I forgot to include my address:
> 60 Davies Crescent
>Gooseberry Hill
>Perth, 6076
>Western Australia
>>
>I,m just ammending this article as the first that I wrote appears to
have disappeared. In answering your question I must first point out that
a pegmatite may both be used as a descriptive term (ie a pegmatitic
granite) or may in fact describe a rock category itself.
A pegmatite essentiallyrefers to those rocks of extremely coarse grain
size. It may therefore be both felsic (silica rich, ie it contains high amounts of
feldspars and quartz) or mafic (silica poor, ie it contains olivines,
pyroxenes and amphiboles). The felsic is the more common of the two, yet,
by definition, both may exist.
Now to the question at hand; is a pegmatite igneous or metamorphic.
Generally the term is applied to igneous rocks, yet as metamorphic
(probably better referred to as `overprinted') rocks, are really
altered forms of igneous or sedimentary rocks, then an overprinted rock,
that still possesses its pegmatitic relict texture, may therefore still
be referred to as `pegmatitic'. I should add that the term can only be
applied to holocrystalline rocks (ie rocks consisting entirely of
crystals, as opposed to those that contain a mixture of crystals, volcanic
glass or ash, or sedimentary (detrital) material), and hence is limited
to only igneous and igneous overprints.
If its any qualifier, I am a geology student at the University of Western
Australia.
Hope I've been of some help,
Regards
Jonathan Bishop esq.
Subject: Today on Galileo - November 6, 1996
From: baalke@kelvin.jpl.nasa.gov (Ron Baalke)
Date: 6 Nov 1996 14:58 UT
TODAY ON GALILEO
November 6, 1996
Today marks Galileo's closest approach in this orbit to Io (240,000 km),
Jupiter (9 Jupiter radius lengths away), Europa (34,000 km), and Ganymede
(1,050,000 km). This is the closest Galileo will get to Io for the rest of
Galileo's scheduled tour of Jupiter, so most of today's study will focus on
close looks of Io by the imaging camera and extensive studies by the NIMS
(Near Infrared Spectrometer) instrument looking for sulfur dioxide and
PPR (Photopolarimeter Radiometer) mapping surface temperatures. Global
coverage of measurements will be made at Europa throughout the day, looking
primarily for any signs of icy volcanism. Evidence for this might be found
with the NIMS instrument, which will look for hydroxyl (OH) in the
atmosphere.
Also, images of Jupiter's third and fourth moons out, Amalthea and Thebe,
will be taken today at 8 km (5 miles)/pixel resolution. Amalthea is 135
kilometers (84 miles) across, and Thebe thought to be 50 kilometers (30
miles) wide, but this data will tell us more.
For more information on the Galileo spacecraft and its mission to Jupiter,
see the Galileo home page:
http://www.jpl.nasa.gov/galileo/
___ _____ ___
/_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
| | | | __ \ /| | | | Jet Propulsion Lab |
___| | | | |__) |/ | | |__ Pasadena, CA | I am doing basic research, when
/___| | | | ___/ | |/__ /| | I don't know what I'm doing.
|_____|/ |_|/ |_____|/ | Wernher Von Braun
Subject: ***Free Digital Data, Surficial Map of Canada available for download ***
From: Andr‚ Pr‚gent@gsc.nrcan.gc.ca
Date: Wed, 6 Nov 1996 13:38:24 GMT
DIGITAL RELEASE
Surficial Materials of Canada
Map 1880A
In response to the increased demand for digital map data, the Geological Survey of
Canada is releasing Map 1880A in digital form in order to evaluate future digital
geoscience map distribution. A digital copy of the Surficial Materials of Canada is
available at;
http://sts.gsc.NRCan.gc.ca/page1/sgm/maps.htm
The french version of the map is available at;
http://sts.gsc.NRCan.gc.ca/page1/sgm/fmaps.htm
Clients accessing the map through the web site are asked to complete a brief
feedback questionnaire prior to downloading a copy of the map. The questionnaire
is designed to help GSC evaluate the needs of users.
The digital map data consists of geology, landforms, and hydrography on separate
layers in .DXF, .MIF, or .E00 formats, and accompanying metadata. The web page
also includes a link to the bibliographic file (GSC Open File 3046) containing
references to the published maps that were used in the compilation of 1880A.
The map shows the distribution of surficial materials in Canada, on land and in
extensive offshore areas, at 1:5 000 000 scale. It portrays broad genetic categories
of surface materials (alluvial, lacustrine, marine, glacial) and bedrock. The map
was compiled using information from the Geological Survey of Canada, provincial
geological surveys, and other sources. It provides a generalized picture of surface
materials for the entire country which serves as base information for a variety of
applications. The map can also be purchased on CD-ROM ($50 in Canada, $65 in
other countries) by contacting gsc_bookstore@gsc.NRCan.gc.ca
P.S. He, take the time to browse around, let us know what you think of the web
site in general!!!
_________________________
, ,
Andre Pregent (my opinion only)
Earth sciences data manager
Geological Survey of Canada
http://sts.gsc.nrcan.gc.ca
pregent@gsc.nrcan.gc.ca
Subject: Life on Earth Began At Least 3.85 Billion Years Ago
From: baalke@kelvin.jpl.nasa.gov (Ron Baalke)
Date: 6 Nov 1996 22:03 UT
Donald Savage
NASA Headquarters, Washington, DC November 6, 1996
(Phone: 202/358-1547)
Stuart Wolpert
UCLA, Department of Earth and Space Sciences
(Phone: 310/206-0511
Cindy Clark
Scripps Oceanographic Institute, San Diego, CA
(Phone: 619/534-1294)
Cheryl Dybas
National Science Foundation, Arlington, VA
(Phone: 703/306-1070)
RELEASE: 96-230
LIFE ON EARTH BEGAN AT LEAST 3.85 BILLION YEARS AGO, 400
MILLION YEARS EARLIER THAN PREVIOUSLY THOUGHT, SCIENTISTS SAY
Life on Earth began at least 3.85 billion years ago,
an international team of scientists reports in the cover
story of the Nov. 7 issue of the journal Nature.
The scientists, from UC San Diego's Scripps
Institution of Oceanography, UCLA's Department of Earth and
Space Sciences, the Australian National University and
England's Oxford Brookes University, present evidence that
pushes back the emergence of life on Earth by 400 million years.
The evidence comes from a rock formation discovered on
Akilia Island in southern West Greenland that is at least
3.85 billion years old. The research -- funded primarily by
the National Science Foundation and NASA -- has provocative
implications.
"Our evidence establishes beyond reasonable doubt that
life emerged on Earth at least 3.85 billion years ago, and
this is not the end of the story," said Stephen J. Mojzsis, a
graduate student in geochemistry at Scripps and the lead
author of the article. "We may well find that life existed
even earlier."
"We look in rocks like this for chemical suggestions
and isotopic evidence, and we found both," said T. Mark
Harrison, professor of geochemistry at UCLA and director of
UCLA's W.M. Keck Foundation Center for Isotope Geochemistry.
"It would be wonderful to see a head and toes, and while we
don't have those, we have found very strong isotopic evidence
for ancient life."
"But in the cases of Earth's most ancient rocks and
minerals, we are actually better off relying on this type of
isotopic evidence -- chemofossils -- rather than on the shape
of life-like objects with which nature has often been
deceiving the unwary," said Gustaf Arrhenius, professor of
oceanography at UC San Diego and principal investigator for
the research project.
The carbon inclusions in the rock were analyzed with
UCLA's high-resolution ion microprobe -- an instrument that
enables scientists to learn the exact composition of samples
-- which Mojzsis described as the "world's best instrument"
for this research. The microprobe shoots a beam of ions --
charged atoms -- at a sample, releasing from the sample its
own ions that are analyzed in a mass spectrometer. Scientists
can aim the beam of ions at specific microscopic areas of a
sample and analyze them.
The team of scientists, Mojzsis; Arrhenius, who is his
research adviser; Harrison; Kevin McKeegan, a researcher in
UCLA's Department of Earth and Space Sciences; Allen Nutman,
a research fellow at the Australian National University; and
Clark Friend, a geologist at Oxford Brookes University,
presents the following evidence for the ancient life:
· Most importantly, a high ratio of one form -- an isotope
-- of carbon to another, which provides a "signature of
life," Mojzsis said. The carbon aggregates in the rock
have a ratio of about 100 to one of 12C (the most common
isotope form of carbon, containing six protons and six
neutrons) to 13C (a rarer isotopic form of carbon,
containing six protons and seven neutrons). "The light
carbon, 12C, is more than three percent more abundant than
scientists would expect to find if life were not present,
and three percent is, in this case, a very large amount,"
Arrhenius said;
· The inclusion of the carbon in a phosphate mineral called
apatite, which is also the material of which bones and
teeth are made. Apatite is often formed by microorganics,
but it can also be formed inorganically. The association
of the carbon with the apatite is "suggestive, and not
surprising, but does not in itself establish life,"
Arrhenius said.
The form of life discovered was probably a simple
micro-organism, although its actual shape or nature cannot be
ascertained, Mojzsis said, because heat and pressure over
time have destroyed any original physical structure of the
organisms.
Harrison, who directs UCLA's ion microprobe, said of
the research, "This was a scientific problem that was waiting
for a new generation microprobe of this resolution. The
individual samples are very small, and no other instrument
would have been sensitive enough to reveal precisely the
isotopic composition and location of the carbon inclusions in
the rock."
It is unknown when life first appeared on Earth, which
is approximately 4.5 billion years old. The previous earliest
evidence for life was presented by UCLA paleobiologist J.
William Schopf, who showed that on the basis of bacteria-like
fossils, primitive life, much like modern "pond scum,"
existed on Earth 3.46 billion years ago. "The evolution of
lifeless matter into primitive life forms, and their
organization into the complex structure of cells like those
found by Schopf, represent an enormous development in the
earliest history before the deposition of the Akilia
sediments," Arrhenius said.
The residues of ancient life that the scientists have
discovered existed prior to the end of the "late heavy
bombardment" of the Moon by large objects, which ended
approximately 3.8 billion years ago, Harrison said. The
implication, he added, is that the often assumed simultaneous
bombardment of Earth did not lead to the extinction of life.
This research shows that life on Earth began during
the first approximately 700 million years after the formation
of the planet, placing an upper limit on the time needed for
the creation of life on Earth, or on the time period
available for it to arrive here from elsewhere, the
scientists said.
"Life is tenacious, and it completely permeates the
surface layer of the planet," Mojzsis said. "We find life
beneath the deepest ocean, on the highest mountain, in the
driest desert and the coldest glacier, and deep down in the
crustal rocks and sediments. Not knowing what conditions are
needed for the emergence of life, it is only possible to
speculate about its existence elsewhere in the universe. An
important contribution to the solution of this problem could
come from exploration of the surface of Mars for traces there
of extinct life."
An equally interesting question, the scientists
agreed, that is currently studied in laboratories on Earth is
how life originally could have arisen from lifeless
molecules, and evolved into the already sophisticated isotope
fractioning life forms recorded in the Akilia rocks.
Mojzsis' research is supported by a graduate
fellowship from the NASA Specialized Center for Organized
Research and Training (NSCORT) in Exobiology, which is
located at Scripps Institution of Oceanography. Arrhenius has
received support from NASA's Exobiology Office, from NASA
NSCORT and from the NSF (Earth Sciences). Harrison's ion
microprobe research is supported by a grant from the NSF's
Instrument and Facilities Program. Nutman's research has been
supported by the Carlsberg Foundation and the Danish Natural
Science Research Council. Friend's research has been
supported by the Oxford Brookes University and the Royal
Society of London.
- end -
Subject: Re: Milankovitch theory ?
From: ba137@lafn.org (Brian Hutchings)
Date: Wed, 6 Nov 1996 22:00:19 GMT
In a previous article, Will.Howard@antcrc.utas.edu.au (Will Howard) says:
again, I ask,
is there any causitive notion for the eccentricity,
whether relativistic or not?... also,
is it really necessary to invoke relativity for the precession?...
after all, a top precesses, merely because the "point"
on the floor actually has a diameter, as the top tilts (of course,
this invokes the godlike powersource of the Invisible Hand
that spun it, in the first place .-)
>In Berger and Loutre's example, taking present-day incoming radiation
>(S_a) at 1360 w/m^2 and a present-day eccentricity of 0.016:
>
> W_e would increase 3.7 w/m^2 (0.27%) for e = 0.075
> W_e would decrease 0.17 w/m^2 (0.01%) for e = 0
>
>Note that 0.075 is somewhat greater than the maximum value for
>eccentricity (about 0.06) during the past 1 million years in the Berger
>and Loutre (1991) solution. The geological record shows that intervals of
>high eccentricity actually are associated with the low-ice-volume,
>interglacial stages of the late Quaternary. However, this association in
>Milankovitch terms is due to eccentricity's modulation of the precession
>effect (the e*sin(omega) term), i.e. the earth-sun distance in boreal
>summer.
>Berger, A., and M. F. Loutre, Long-term variation of the astronomical
>seasons, in Topics in Atmospheric and Interstellar Physics and Chemistry,
>edited by C. Boutron, pp. 33-61, Les Editions de physique, Le Ulis,
>France, 1994.
--
You *don't* have to be a rocket scientist. (College Career Counselor
to me, again )
There is no dimension without time. --RBF (Synergetics, 527.01)
Subject: Re: Milankovitch theory ?
From: Will.Howard@antcrc.utas.edu.au (Will Howard)
Date: Thu, 07 Nov 1996 14:38:42 +1100
In article <1996Nov6.220019.846@lafn.org>, ba137@lafn.org (Brian
Hutchings) wrote:
> again, I ask,
> is there any causitive notion for the eccentricity,
> whether relativistic or not?... also,
> is it really necessary to invoke relativity for the precession?...
> after all, a top precesses, merely because the "point"
> on the floor actually has a diameter, as the top tilts (of course,
> this invokes the godlike powersource of the Invisible Hand
> that spun it, in the first place .-)
>
Oh, I think I see what you're asking.
The orbital variations of precession, and changes in eccentricity and
obliquity are caused by the gravitation interactions of the sun, moon,
earth, and other planets in the solar system. No need to invoke relativity
here, Newtonian-type physics seem to be quite adequate as far as I know.
I refer you again to some of Berger's publications (previously cited) for
which planetary interactions are associated with which orbital periods,
etc.
****************************************************************
email: Will.Howard@antcrc.utas.edu.au
Antarctic CRC / University of Tasmania
GPO Box 252-80, Hobart, Tasmania 7001 AUSTRALIA
****************************************************************
Subject: A Great Offer of a Geographic Information System
From: nac@zap.io.org (The International NAC Society)
Date: 7 Nov 1996 11:08:48 -0500
===============================================================================
| |
| Great News! |
| |
| You can buy a US$999 GIS with only US$39 before Nov. 20, 1996! |
| |
|-----------------------------------------------------------------------------|
| Contents |
| |
| Introduction |
| Major features |
| Discount information |
| Order information |
===============================================================================
Introduction
NAC Geographic Products Inc. has developed a geographic information system
called NACGIS Version 2.0 for Windows 95 and Windows NT, which has
implemented the great invention: the Natural Area Coding System. Based on
the Natural Area Coding System, NACGIS has introduced a ten-character
Universal Geographic Identity for every geographic object in the world. No
matter what size it is. Every geographic object in the world from a
continent to a parking meter can be statistically uniquely identified by its
Universal Geographic Identity (UGID).
Major features:
1. Automatic assignment of UGID's to all geographic objects.
2. Automatic links between a graphic object in the map file and its
associated document in the document database. You can use both text
searching and mouse clicking on the graphic object to retrieve the
document for reading and editing.
3 Supports transparency which allows you draw transparent graphic objects
with all pictures underneath shown in a mixed color.
4. Graphics editor's features:
a) Drawing tools:
NACGIS Version 2.0 procides two sets of drawing tools:
i) Mouse direct drafting on the screen with your specified default
line color, line type, line thickness, brush color, brush
pattern, font type, font size, font color, layer number, etc.
ii) Graphic object set-up dialog boxes to create accurate pictures.
The dialog boxs allow you input exact coordinates for polyline
nodes and polygon vertices and layer number, text escapement
angle, layer number, specify whether it is a polyline or smooth
curve and a polygon or an area, whether it is transparent, and
set up pen, brush and font parameters. You can insert or delete
nodes or vertices at any location of a polyline or a polygon.
A polyline, polygon, simple picture or a group picture can be
converted to each other by simply clicking a botton on the dialog
boxes.
NACGIS Version 2.0 can draw polylines, curves, polygons, areas, simple
pictures (ractangle, circle, ellipse, regular polygons, stars, etc.),
text objects, bitmap objects and group pictures (from an art gallery
database).
b) Manipulation tools:
NACGIS Version 2.0 provides the following graphic objects manipulation
tools:
i) Mouse and arrow keys direct draging and resizing
ii) Manipulation dialog box which allows you move an graphic object or
a group of graphic objects a specified distance or to a specified
location, exactly stretch it in x- and/or y-directions, rotate it
a specified angle arround a specified pivot, and mirror it in x-
and/or y-directions with a specified symetric center.
iii) Alignment dialog box which allows you align a group of graphic
objects to the left, center, right, top, middle, bottom.
iv) Group objects tool which allows you to create group pictures (only
one set of a group picture's data will be stored in the memory
but can be shown in as many places as you want, which will greatly
simplify your drawing and save memory). Once the group picture is
created, you can also add it to the art gallery database of the
software for later use.
v) Delete, Erase All, Undo, Cut, Copy and Paste tools
vi) Grid generator which can automatically generate the appropriate
level of the NAC grids.
5. Map viewing tools
NACGIS Version 2.0 provides the following map viewing tools:
i) Theme layers dialog box allows you select the visible layers for
the current map. It can store 120 different theme layers.
ii) Zoom In and Zoom Out tools allows you zoom in as many time as you
want and zoom back to the origanal picture.
iii) Split panes of a winow, multiple windows of a document and
multiple windows of multiple documents. NACGIS Version 2.0 allows
you to view different parts of a map in different panes or
windows, view different scales in different panes, and
compare different maps in different windows.
iv) Display of the cursor's coordinates in Longitude/Latitude, UTM and
NAC simultaneously on the status bar of the frame window.
v) Coordinate systems
NACGIS Version 2.0 supports three types of coordinate systems:
Longitude/Latitude system, UTM system and user-defined system.
You can import a map file in one coordinate system and export it
in another system (Longitude/Latitude <=> UTM).
vi) Window setting
You can set the scroll window size, window background color, the
coordinates of the top left corner of the window and suitable
scale to create the best view for the map.
6. Document editor's features
NACGIS Version 2.0 also provides a powerful document editor which allows
you to read and edit the attached document of a graphic object. The
attached document is named by the UGID of a geographic object, which can
cantain text contents with all kinds of fonts, font styles, sizes and
colors, bitmaps, and all other objects created by OLE servers such as
Excel Charts and Worksheets.
7. Help file
NACGIS Version 2.0 provides a powerful help system which has the
following features:
i) Context help
Whenever you need help for a dialog or a menu command, you can get
the help topic immediately by pressing F1. You can also press the
button with an arrow and a question mark on the toolbar and the
move the cursor to the item about which you need help and
click the left button of the mouse to get the help topic.
ii) Tooltips
NACGIS Version 2.0 provides tooltips for all menu commands and
buttons. When you move the cursor to a toolbar button, you will
see a yellow box with simple help text beside the cursor and a
bit more detail help text on the status bar of the frame window.
iii) Topics, index and word search
NACGIS Version 2.0 allows you to search help content by topics,
index and simply a word.
8. Print, print preview and printer set-up
NACGIS Version 2.0 provides you all the useful features for print, print
preview and printer set-up. It allows you print black/while or color
map, and a large map into small pieces which can be connected together
to get a large map. You can also print any part of a map if you set the
window size, the coordinates of the top left corner of the window and the
appropriate scale of the map.
9. Support of file types
NACGIS Version 2.0 mainly support its own map document files with the
extension ".nac". However, it can import and export three types of text
files: lists of polyline nodes coordinates, lists of polygon vertices
coordinates and lists of text objects (text contents, insert point
coordinates and escapement angle). In the future vertions, we will add
dxf files. NAC Geographic Products Inc. also provides you various map
documents at good prices.
Discount information
NAC Geographic Products Inc. would like to offer you a special discounted
price for the license of using NACGIS Version 2.0. The standard price for
the license for a single person using NACGIS Version 2.0 in one computer is
US$999. If you are using the software at home for non-business purposes,
you can get 50% discount. Once you have bought one license of the software,
you will get a 80% discount for the license for a future version of the same
sfotware. There is a special discount price now. If you buy the license
before November 20, 1996, you need to pay only US$39 + US$5 shipping fee
( + 7% GST if in you are in Canada). After then, the price will rise
everyday (about US$5.3 a day) until it reaches US$999.
Ordering information
You can order the license by sending us the international money order
(or a check if you are in Canada) or tell us the information of the VISA
credit card (Credit card number, holder's name, expiration date and issuing
bank name). The price is determined by the date you send out your order.
If you use credit card, you can also order it through Email, fax or phone.
Please include the exact name, company, address, phone, fax, email for each
licesee because the name and address will be embedded into the software.
Our address is
NAC Geographic Products Inc.
509-50 Stephanie Street
Toronto, ON M5T 1B3
Canada
NAC: 8CHK Q87P
Phone and fax: (416) 979 9306
Email: nac@io.org
Web: http://www.io.org
If you are doing land planning, NACGIS will be your great assistant!
If you are working on transportation, NACGIS will be your first assistant!
If you are managing natural resources, NACGIS will provide you the convenience!
If you are working on environment protection, NACGIS will be your power tool!
If you are doing marketing, NACGIS will give you extra hands, eyes and ears!
If you are managing real estate, NACGIS will let you get rid of tedious work!
If you like fishing, NACGIS will help you record the best fishing spots!
If you are a bird watcher, NACGIS will tell you where birds live and move to!
If you are learning geography, NACGIS will be your helpful teaching assistant!
Subject: [LOCAL] Houston Pot. Fld. Mtg. 11-21-96
From: campbell@neosoft.com (Chuck Campbell)
Date: 7 Nov 1996 18:35:27 GMT
ANNOUNCEMENT
Houston Society of Potential Fields Geophysicists Meeting
Date: Thursday, November 21, 1996
Time: 5:30 - Social Hour, 6:30 - Dinner, 7:30 - Talk
Location: Hess Building, 3121 Buffalo Speedway
Cost: $20.00
Topic: Constrained Gravity interpretation in the major sedimentary
basins of Venezuela.
Speaker: Victor Graterol
Reservation: Please respond by Nov. 19th to:
Chuck Campbell, ACCEL Services, Inc.
campbell@neosoft.com, or 713-993-0671
Abstract:
In the evaluation of sedimentary basins with extensive gravity and magnetic
coverage , but with limited seismic data, the integrated interpretation of
the three types of geophysical information is strictly necessary to establish
not only the possible potential of the basin, but also to define the follow
up exploration program.
Constrained Gravity interpretation is the key to establishing basin potential.
Control points coming from the limiting existing seismic data and direct
information from wells and geological surface maps, can be employed to obtain
regional and residual constrained maps that permit a more adequate quantitative
gravity modeling method for outlining the main existing geological structures
in the basin. The final composite structural interpreted map showing the top of
the main density interface , also permit the optimum design for the location
of the eventual follow seismic program.
Examples of constrained gravity interpretation for specific areas within the
Eastern Venezuelan , Guarumen and Maracaibo basins are presented to illustrate
this approach in the interpretation of potential field data.
Biography:
Victor graduated in 1962 as a Mining Engineer at the Universidad Central De
Venezuela, he started as a Production Engineer at the Creole Petroleum Corp.
(Lagoven S.A.). From 1965 to 1967 he was a member of the Geophysics Department
of the Ministry of Energy and Mines of the Republic of Venezuela. Between 1967
and 1969 he was a graduate student at the University of Toronto in Canada where
he finished his M.Sc. In Geophysics.
Back in Venezuela he became head of the Geophysics Department at the MEM and
started his academic career as Instructor at the Universidad Central de
Venezuela. In 1974, as a member of the Physics Department of the Simon Bolivar
University, he developed the former Geophysics Section that today is the
Earth Science Department, part of Engeneering Geophysics at this prestigious
institution. Victor has over 30 years experience in Potential Methods
concentrated in acquisition, processing and interpretation of gravity-magnetic
surveys. He classified and evaluated over a half a million gravity land, marine
and airborne stations that form today the USB-Venezuela gravity data base.
At present he is an international consulting potential field geophysicist
interpreter doing work for companies such as Carson Services - Aerogravity
Division and First Exchange Corp. He is a member of the SOVG and SEG.
--
ACCEL Services, Inc.| Specialists in Gravity, Magnetics | 1(713)993-0671 ph.
1980 Post Oak Blvd. | and Integrated Interpretation | 1(713)960-1157 fax
Suite 2050 | |
Houston, TX, 77056 | Chuck Campbell | campbell@neosoft.com
| President & Senior Geoscientist |
"Integration means more than having all the maps at the same scale!"