Difference between revisions of "AY Honors/Fossils/Answer Key/es"

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|honorname=Fósiles (Asociación General)
 
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{{IAConnection/es|[[Investiture_Achievement/Explorer/Nature_Study/es|EXPLORADOR Estudio de la naturaleza]]|estudiar artículos que complementan esta especialidad|Esta especialidad es una elección popular para la especialidad de la categoría de Estudio de la naturaleza de nivel de destreza 2 o 3 requerido para los EXPLORADORES DE CAMPO Y BOSQUE.}}
 
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A convenient weight for a general purpose geological hammer or rock pick is around 1 kg (2 to 3 pounds). For breaking very hard rocks one may need a hammer of between 3 and 6.5 kg (7 and 14 pounds) in weight, with a correspondingly longer and thicker shaft. A hammer that is too heavy is tiring to use and results in unsafe work.
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! style="background:rgb(154,217,229);" colspan="3" | Phanerozoic eon
 
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! style="background:rgb(153,192,141);" | Paleozoic era
 
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! style="background:rgb(103,197,202);" | Mesozoic era
 
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! style="background:rgb(250,253,1);" | Cenozoic era
 
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[[File:Shell Limestone.jpg|thumb|200px|Shell Limestone]]
 
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<!-- 3. Visit a museum where fossils are on display and make a written or oral report of your trip. -->
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<!-- 3. Visitar un museo donde los fósiles se encuentran en exhibición y hacer un informe escrito u oral de su viaje. -->
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[[File:Tyrannosaurus rex Stan.jpg|thumb|300px|Tyranasaurus rex]]
 
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Most museums of natural history will have a fossil collection, and even small museums are likely to have a few.  If you do not know of such a museum in your area, the Internet is your friend.  Try searching for "fossil," "museum," and the name of your locality.  If you are still unsure, get a list of local museums and call them.  They will be happy to tell you if they have fossils on display, and if they do not, they may be able to direct you to a museum that does.  Also not all museums are called a museum. The T Rex and some other fossils shown here were photographed at Science World in Vancouver. 
 
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After the visit, have your Pathfinders either write their reports or present one orally.  This would be a great topic for worship during your club's opening exercises, or during a campout.
 
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<!-- 4. Describe the process of the proper removal of delicate specimens. Tell how a skeleton of a dinosaur or other gigantic fossil would be removed. Why should beginners not remove such specimens? What should be done by the beginner when he finds what is obviously a valuable fossil? -->
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<!-- 4. Describir el proceso de la correcta extracción de los especímenes delicados. Decir cómo un esqueleto de un dinosaurio gigantesco u otros fósiles serían extraídos. ¿Por qué no debería principiantes extraer esos especímenes? ¿Qué trabajo debería ser realizado por el principiante cuando se considera que es evidentemente un fósil valioso? -->
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===Removal of delicate specimens===
 
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For extracting fossils from harder rocks, a sturdy mallet and cold steel chisels may also be required. Usually one needs a range of chisels in size from small ones with a sharp edge of about 1 cm (quarter of an inch), to much larger and heavier chisels. A broad-bladed chisel is often very useful for splitting rocks along their bedding plane.
 
  
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Different types of rocks will break differently and a beginner should put in a little practice, getting the feel for a particular type of rock before he or she starts hammering out fossils. It is all too easy to ruin a specimen with one ill-placed blow of a hammer.
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Extracting a specimen that is embedded in solid rock may prove to be a long and difficult process. Before attempting to extract a specimen, the collector should make sure that it is feasible to remove it without destroying or damaging it. Leaving sufficient rock beneath the specimen to protect it from fracturing; excess matrix can be trimmed at a later time.
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For soft sediments and unconsolidated deposits, such as sands, silts and clays, a spade and a flat-bladed trowel or stout bladed knife may be the most useful tools for clearing the area around a fossil. Brushes are also useful for removing loose sediment from around fossils.
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A sieve is used to separate fossils from sands and gravels. A smaller mesh is required in order to avoid losing small fossils. One practical difficulty with using sieves in the field is that they easily become clogged, especially when the material sieved has a high moisture content. However, under dry weather conditions the more durable fossils, such as teeth and bones, can be quickly and easily sieved out of loose sands. Shaking the sieve is always liable to damage or destroy fragile fossils.
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If there is water available, such as on a beach or next to a stream, the material containing the fossils can be sieved wet and the matrix gradually washed away. Wet sieving is a technique that is frequently used for the collection of small mammalian fossils, and by using this technique even the smallest specimens may be recovered.
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===Removing gigantic fossils===
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Occasionally, large fragile specimens may need to be surrounded and supported using a jacket of plaster before their removal from the rock: This protects the fossil, protecting it from shattering. If a fossil is to be left in situ, a cast may be produced, using plaster of paris or latex - while not preserving every detail, such a cast is inexpensive, easier to transport, causes less damage to the environment, and leaves the fossil in place for others to enjoy. Subtle fossils which are preserved solely as impressions in sandy layers, such as the Ediacaran fossils, are usually sampled by means of a cast, which shows up detail more clearly than the rock itself.
 
  
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===Valuable fossils===
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If you find an obviously valuable fossil, you should contact a professional.  It is too easy to ruin a fossil by attempting to remove it yourself.  Leave the extraction in the hands of an experienced collector.  If you find such a fossil on public land, contact the authority responsible for the land.  The fossil belongs to them, and they have the right to decide what to do with it.  To find a professional, contact a museum or a local university.  If they do not have one on staff, they will be able to refer you to one.
 
  
 
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Evolutionists and creationists both agree that fossils are formed when a creature is quickly buried in sediment.  They disagree on how long ago this happened.  Evolutionists believe most fossils were made millions of years ago.  Creationists believe that nearly all fossils were made during Noah's flood less than 10,000 years ago.
 
  
 
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<!-- 6. De la Biblia y los escritos de Elena G. de White, citar declaraciones para explicar el origen de los siguientes materiales: <br>a. Carbón <br>b. Petróleo <br>c. Fósiles <br>d. Caliza-->
  
 
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!From Patriarchs and Prophets, pp 107, 108
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!De ''[https://text.egwwritings.org/publication.php?pubtype=Book&bookCode=PP54&lang=es&collection=56&section=236&pagenumber=98 Historia de Patriarcas y Profetas, p. 98], [https://text.egwwritings.org/publication.php?pubtype=Book&bookCode=PP54&lang=es&collection=56&section=236&pagenumber=99 99]
 
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|''Everywhere were strewn the dead bodies of men and beasts. The Lord would not permit these to remain to decompose and pollute the air, therefore He made of the earth a vast burial ground. A violent wind which was caused to blow for the purpose of drying up the waters, moved them with great force, in some instances even carrying away the tops of the mountains and heaping up trees, rocks, and earth above the bodies of the dead.''
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|''Por doquiera yacían cadáveres de hombres y animales. El Señor no iba a permitir que permaneciesen allí para infectar el aire por su descomposición, y por lo tanto, hizo de la tierra un vasto cementerio. Un viento violento enviado para secar las aguas, las agitó con gran fuerza, de modo que en algunos casos derribaron las cumbres de las montañas y amontonaron árboles, rocas y tierra sobre los cadáveres.''
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''At this time immense forests were buried. These have since been changed to coal, forming the extensive coal beds that now exist, and also yielding large quantities of oil. The coal and oil frequently ignite and burn beneath the surface of the earth. Thus rocks are heated, limestone is burned, and iron ore melted.''
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''En ese tiempo inmensos bosques fueron sepultados. Desde entonces se han transformado en el carbón de piedra de las extensas capas de hulla que existen hoy día, y han producido también enormes cantidades de petróleo. Con frecuencia la hulla y el petróleo se encienden y arden bajo la superficie de la tierra. Esto calienta las rocas, quema la piedra caliza, y derrite el hierro.''
 
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The Bible itself offers no explicit explanation of coal, petroleum, fossils, or limestone, though it does contain the story of Noah's flood (see Genesis chapters 6-9).  In this account, the whole earth is covered by water, and all life, except those in the ark, is lost.  The Biblical account of creation rejects the notion of hundred of millions of years of evolution, stating with clarity that God created the world in six days.  In Genesis chapter 5, the Bible also provides genealogies of the Patriarchs, including their ages when they had children and when they died.  From this, and from other historical records, the Bible sets the age of the Earth at about 6000 years.
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==References==
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==Referencias==
  
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There are many fine book written from a creationist perspective. Some examples:
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*[http://tinyurl.com/beforeflood Before the Flood] (links to book on Amazon)
 
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*[http://tinyurl.com/birthiceage Noah's Flood-Birth of the Ice Age] (links to book on Amazon)
 
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*[http://tinyurl.com/fosrockdinos Rocks, Fossils and Dinosaurs] (available as free digital book)
 
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*[http://tinyurl.com/creatgeo Creation Geology: A Study Guide to Fossils, Formations, and the Flood.] (links to book Amazon)
 
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*[http://www.adventistbookcenter.com/review/product/list/id/3562/ Evidences The Records and The Flood] DVD distributed by Adventist Book Centers.
 
  
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Latest revision as of 14:51, 2 January 2023

Other languages:
English • ‎español
Fósiles

Nivel de destreza

2

Año

1944

Version

23.09.2024

Autoridad de aprobación

División Norteamericana

Fossils AY Honor.png
Fósiles
Estudio de la naturaleza
Nivel de destreza
123
Autoridad de aprobación
División Norteamericana
Año de introducción
1944
Vea también
Maestría de Conservación
Creacionismo - Avanzado
Explorador


1

Hacer una colección de al menos 10 diferentes clases de fósiles y etiquetar cada uno con su nombre y ubicación geográfica.



2

Tener una breve definición de cada una de las siguientes en su libreta de notas:


2a

Geología



2b

Fósiles



2c

Catastrofismo



2d

Paleontología



2e

Graptolitos



2f

Trilobites



2g

Dinosaurio



2h

Mamut



2i

Mastodonte



2j

Crinoidea



2k

Lingula



2l

Calamites



2m

Foraminíferos



2n

Radiolaria



2o

Paleozoico



2p

Mesozoico



2q

Cenozoico



2r

Pleistoceno



2s

Paleobotánica



2t

Pelecípodo (bivalvos)


2u

Braquiópodo




3

Visitar un museo donde los fósiles se encuentran en exhibición y hacer un informe escrito u oral de su viaje.



4

Describir el proceso de la correcta extracción de los especímenes delicados. Decir cómo un esqueleto de un dinosaurio gigantesco u otros fósiles serían extraídos. ¿Por qué no debería principiantes extraer esos especímenes? ¿Qué trabajo debería ser realizado por el principiante cuando se considera que es evidentemente un fósil valioso?



5

Explicar la diferencia que los científicos dan de la presencia de fósiles en relación a los evolucionistas y creacionistas.



6

De la Biblia y los escritos de Elena G. de White, citar declaraciones para explicar el origen de los siguientes materiales:
a. Carbón
b. Petróleo
c. Fósiles
d. Caliza


De Historia de Patriarcas y Profetas, p. 98, 99
Por doquiera yacían cadáveres de hombres y animales. El Señor no iba a permitir que permaneciesen allí para infectar el aire por su descomposición, y por lo tanto, hizo de la tierra un vasto cementerio. Un viento violento enviado para secar las aguas, las agitó con gran fuerza, de modo que en algunos casos derribaron las cumbres de las montañas y amontonaron árboles, rocas y tierra sobre los cadáveres.

En ese tiempo inmensos bosques fueron sepultados. Desde entonces se han transformado en el carbón de piedra de las extensas capas de hulla que existen hoy día, y han producido también enormes cantidades de petróleo. Con frecuencia la hulla y el petróleo se encienden y arden bajo la superficie de la tierra. Esto calienta las rocas, quema la piedra caliza, y derrite el hierro.



Referencias

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