7/25/2019 Homework One SP2016
1/5
Geop 4096/Geol 6331 Homework One
Due February 9, 2016
Homework assignments must be completed independently. Please safeguard your work all parties
involved in plagiarism will be given zero points and further actions regarding academic dishonesty may
be taken by the university.
Important Note !"pe#$ally %or t&$" a""$'nment, neatne"" w$ll be a %a#tor $n your 'ra(e)
*$n#e $t mu"t all be &an(wr$tten, I w$ll not 'ra(e anyt&$n' t&at I mu"t "tru''le to rea()
+o$nt out your label" neatly, "$n#e $t m$'&t be ea"y to #on%u"e your an"wer" ot&erw$"e)
1). The Earth is composed of numerous entities composed of lithospheric material
known as Tectonic Plates, and knowing them is of fundamental importance to
understanding Global Tectonics. or the map below with the plate boundaries
demarcated in bold red lines, label each of the following ma!or and minor plates on
the map"1 point for each plate)#
$natolian $ntarctic $rabian $ustralian %aribbean %ocos
Eurasian &ndian 'uan de uca (aca (orth $merican
(ubian
*khotsk Paci+c Philippine cotia omalian outh $merican
unda -angte
(ame#
7/25/2019 Homework One SP2016
2/5
). *ne of the most signi+cant elements of plate tectonics is the concept of mantle
/ow and the resulting dri0ing force known as basal drag2 where slow con0ection of
asthenospheric material e3erts a frictional force on the base of the lithosphere. This
powerful force is often characteried as the conse4uence of a mantle plume,
otherwise commonl5 called a hotspot. *n the +gure below are twent5 stars
representing the surface e3pressions of the theoried locations of ma!orhotspots6plumes which ha0e been tomographicall5 imaged to the deep lower
mantle 7Montelli et al., 889:; label each of the following on the mapne3t to their
corresponding star " points each)#
$far, Ethiopia $scension %anar5 &slands Easter &slandEifel,
erguelen ?eunion amoa Tahiti
7/25/2019 Homework One SP2016
3/5
@). Throughout this course and in an5 con0ersation with a Tectonoph5sicist, 5ou
ma5 hear the term craton "often alternati0el5 called shields, which are simpl5
cratonic terranes e3posed at the surface) used fre4uentl5. %ratons form the
nucleus, in man5 cases, for the continental landmasses we know of toda5. alahari %raton "%ombination of >aap0aal B Cimbabwe %ratons) iberian
%raton
uperior %raton Tanania %raton Dest $frican %raton D5oming
%raton
-ilgarn %raton
7/25/2019 Homework One SP2016
4/5
9). The following is a collection of other assorted ma!or tectonic features, including
rift ones, notable orogenies, signi+cant subduction ones "also known as trenches2
or arcs2), and midAoceanic ridges. or the following, simpl5 drawing a circle around
"or pointing to, due to the small sie) the area in 4uestion will be sucient "be sure
to label them on the map, of course) "1 point each)#
$ndean ubduction Cone $lpine *rogen5 $ppalachian6Fariscan *rogen5
7/25/2019 Homework One SP2016
5/5
I). $ ke5 element to understanding Plate Tectonics is the knowledge of the histor5
of the assembl5 and breakup of supercontinents or assemblages of landmasses
known as cratons "the nuclei2 of the modern continental landmasses) and their
relati0e timing. or each of the +0e supercontinents listed below, describe boththe
landmasses which comprisedthe supercontinent"i.e. Haurentia, Haurussia,
Gondwana, notable cratons, etc.) and the relative timing"i.e. Hate (eoproterooic,
Earl5 'urassic, etc.) for full credit "9 points each entr5, 8 points total). or help,
refer to the Nance et al.7819: article posted online with the assignment.
Faalbara#
>enorland#
Pannotia#
?odinia#
Pangea#
Top Related