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Trang 1CHUaNG TR NH DIEu T A TONG H(JP
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Trang 3CJ' quan chr.ttrl thl/c hien
crqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAhiro'ng trlnh :C~cJIHGFEDCBACd quan them gia th~o
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Trang 4-o •zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA
c6 nhll v9-:/. trOl)~ Y· lllg 15 - ~o OOID Jiia ,wi 06 th'. hoan th~
"Vi Q do va ya bion to:n X(.m~ mpt bP ben dtl ,~g b:lOll Vi~t nAm hoao
uau.-># • , " '" •
Phong D~a ohAt - l>~ll m~o
Dh\ing Allin xh c6 h~ tb6.og ct tlm hltu dHlu kl~n hlnh thitnlt clbb1tn,
II Ui-,~ dath\ll) hiin <!\1Q'c & D~ .thVohiCn tD\Vl ti~u t1'8n
thu m.f.u oh!t d~ till 16 trf;\m ~t.ng hQ'p ofla chU(llng trlnh~ 28 tr,mtheo
10' l~Dg "tiid 16 t1'~mttng hQ'j/ (4 ohuy3n thu "dU'Q'o384 m1\u) Thu '''h~p
Tat c~ o~ mlu chit d~ <.t8.t.tl29'cl>ha.n tloh theo c~c chi tlou 4
.l&Pt 8& mlu d's.d~c J?~a.n ttch th8.Db phtl vi 0t aiM, th~.phln
Trang 5quanzyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAHoa r.Y , S.!r Go:t'skClv(-'97!~), :r-p. Shepard, K.O Emery (1964) •••
c 00 ki~ll1 tr'hl:J t1ch tl1Dg mit va &'1 phan-"6 o~a ohUng d:~o dl'm v~ · t;ham
B;.I.o c ao na:;r (tL:-qC hoan thaLb '\Vi 81/ nc 11/0 l'a!ll vifc cua ~anbp ,
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143
Trang 6-25 din }O ;;0 •.'Ranb.gl~l tr~n la.du;;ng bO: b1~n h1~l).d~i va renh g1~:l.
eh sau ditch 20 mAt. c%?chis cat dq du&i Ot~O kaV.k.m2va goo c.1~ 0
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o "chiu th ~ lIgbm hi theng •brig Ji"Ongn&1 phin bt ~ ph! ':e{o: D 0
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ma con oS tfla dv.ng xb to.\10 t"o nen r8.nb sau trlt6c c°r,aSOODg dang h5 ?
Nhin chung ki\u d~a h\nh mo t1 b tren e6 ngu~n g80 b~i tv v61.
lvc lam cho oh~ 06 nblt-tlg net rUng bi~t 1 1 nh~ phb kh~ Dhau • '
dtt(/c ngan o&oh b<1inhUl! htJ trling sau 30 - 4{) ll1't 1a n.:11 06 dWngd~
ohonu rfmg 45 - 50 m~t O· da;, 06 nhn-a d~ng,
o dtfO'lIg va de.ng &.mzon ke · nhau phan b8,k~0 d~l kh8ng lUn tv.c·thech~ng
144
Trang 7
kll12 '~i g&; ~~c k.L5.ZYXWVUTSRQPONMLKJIHGFEDCBA l t n tX-'l:cg 1l.D~ 20 - 30'. cO OO'i tren ;0' S:J
~~ mat cang leI! tLi ~c d~ ehia c~t dj.a h\.ob os:og ta~.
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- t}!):og blDK"!;~.ah l,l Utat mon· ohi-9 d:u y;u~jatu d"~ hlnh nay
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<1n1t61 o:p fJs.u 45 - 50 mh·.
~ ugu~n goo In ki~u ~ta h1nh ktJ th~~kieu d~~ h~nh lvo d~a
-li'.lvi do h~ th151lg fi6ne c ~ t.,.o nsn, B~ u4t <1~ngb~:::l.6;1>1cIlia ci&.t bdi
hoi.c oha nh3 08.0 '~n l ' ~ <.H~.u"Vet cfla dj.a hlnh s6t 06 s\tdn tlioai •
• •• b" ••.- <.I , •
2 ~ Dnu kHn th~ ts.o dj.a el.nh:
tren 00 htrog loe.t 'cae y"u tv ma trt "'O'c het phs:l ke cten.la Iilung, dong
ch~ d~ng "liribu, sO:c.g, dh • trG.c dj.a ccet ·va a~.nh -v1.t. 1(f,1yeu t S
Trang 8vazyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAholm th1~r ha1kitu d~ng b~ng d~ng bkg mli montich t\l chis c~t
Vl~nh v~ J~~b b~r~ t1nh 1.1,\mt.i mon chin 0'1; y(lu' trollO dil\u ki~n ciit
• • • • " " I I ~ _ t • _ I
bang ~gu~n g~o tlch t\,t - mai mon va mai m~n • tlch t~ d\tQ'o phiinb:t~t
Cit".l (]I.F. Sh.,pard, K.O Emery 1964 tau Kyoshln ),faru No 52 1968-1969
•
•
va ngu~n g~c cua tr'lno tlc~ Bi~n DOngn6i chung va th'm 1~c d,.a phl~
hlnh the.nh mlJt d6i r~ng ral t~ ngo&! khO'1 Nllm bs> Viet ItQm tt'1 a: a CI
- 1 1 1 · 6
Trang 9147 -
i)f> ti~ll vi~c thflo do1 dunh gi& ch~llg' t,)i ~ me t~ eel 1119'0 mpt
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c6 1ml t(h 13010., Thanh ph'tt.n tU'(.,'ng <!01 d~ng nh~t lo-~i cat k~t, caterit
"
tai li6u nghien cuu tr'-m t,ell Wl'g bien van 00'Pbu knann va tai li~u
kj~n ~~ng l~c h~n d~i
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kheng chlia caL ) h~t :oh~ hon 0, 05mm ho§.c T~t it thanh ph~n v~t chat
ngo~i ph'tl.n chu ysu Is v~t Li'U VO Cd con chtfa vo xac (;LJ l~v'lt VJ. uat,
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Trang 10•• 1, (':01';.•••zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAva ctLc m!ulh j.t ""1 hUt 11.!'~·.Q$ 1r.hoq~1~ngk~.ZYXWVUTSRQPONMLKJIHGFEDCBA
• t l • t • • • • t , , ~ , • •
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D~i.'~l bUn &3h: <:h&!o c~\i tb t\ s~ ('at 1.,U.-c.·8~t·'tIg\t'-w·eled ttt 1.1 d~n
119
k~o d~.1 t~ VuUg T(\u xn~~g ph{a Nam, nian th20 l.hfO'~~tng Gau 20 - 22m
2 • 1.hsnb llh !!,!l ct;).' hpt) eu,\' trt".m"G L:~h •
- Di-etrllng 'phflu b~ Il~h~t tr~TIl tleh I kh· qu~pht\n ttoh d~,
h,:t trb t1eh <l\t\"'o t~toh b~ trong Oq I - II c~ t;rb t!ch ~ l 1 1 o
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- C~ he 80 OC' hpe cta trlim t\oh I
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tr~TDt1ch. iChong wqt qu1 0,40 m1l!, ta.a cht, y3u n1m troDg khc1mg 0,25
148
Trang 11c~a mfJt118 trfJll vi'D.,?;bi~n H~Ul Tan - Con 20'n.dcbaZYXWVUTSRQPONMLKJIHGFEDCBA
Trang 12156 I I 20.55 I 79~4-4 IBUn sh cht1a olt
Trang 13-Gi& tr~zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAtt'ung blllh cfl.a 0to h~ 8~
tall{'; ho~c gi~m tb.l 80 d:~u tat.g. 06 ~la la, m1c dP ch~n r~ g".~ ,vAn
dao dpng'tlt 0.:':>5 dGri.0.125 111m? c'ung de. dl1fjO D.tlllI&8.D (1949 ).A P."Litixum
(1906) g-lJli th!oh va nh\l eb~ng ta ds bi~t m~o d 'S > chon 19¢ C~fl tr'urd.ch
I
t!Uh ch~t thUy dpr~; lVo me tr~~c h~t- la,t6e dp ~ong t" · u~ l~~g ~Ong
w.i c~ o~.Pho.t khac nbau cta tr'lm t!ch.
151
Trang 14d n .-',5%, tlnl.l tru%1g bLnh c ho toan '\'U:l.g 1a 1,.58%. So oa.nh ' vi CRC khu
reu c ( J s~ I - III th~ h:1~n b~c tranb l)he.n bts. h~ll'A1l.t9'ng kro'illg
.••.n <.tt1ni/U ng Tdu) 0 ;phla Nam ham 11.t'iXlg 'tih~p ho'n (dl1<1i 1% )ngOijli t:;.'lt
2 - 1.4% ••
I'!\ ong 'Grt.m t!ch oh Vt~lDgl)i~ll Ram Tan - can son, 06 D4t khC'&l"'g
152
Trang 15-~o l.oCll ~ ho'ng, v~t ~ng. Cb.G~ i;h~ng de dCmg v~ e6 IIS'l~n ~t\e kh9.o
Wo. 'V~o h~m lt1(jDg va s~ phaX\b~ aua tling kh()~ vq.t ohfmgf;at
eho 'trb t;loh ofla vU ng dnu tra, phan bl5 r~ng rai va th~Dgxu.yenWi
trllm t ch Ii.u.y rJJ1f/o de.n ra troD8 bang I, - IV.
ia!W IV I Thanh ph~n h~a hpo trung bhm cfla
tr~m t10h (%)
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h6a hpo trung blnh c~a o ~c lo~i dtt t.tro'Dg ~ng (Clm-ke "s' \.)th~T~Dg,
trhm t1ch bun s$t rgt giau /.1, tr'tlm t!ch C11ttu'O'!Ig d6i \- li, Fe
15~
Trang 16-deb t~ng ~t khuzyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAVl/o l\gh1~n o~u
V90 dP hQ.t c~a tr~ill t1ch <16. K#t qu~ IJhan tiQh thao th8nh phb.u ettv
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va CaC0
2
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W!>t.v1andb kh' 1y thG 1;' s'l ph&n b~ c~a hejp phln h6a h~1 theo
154
Trang 17-v sl/ k'hin b~ ¢ua eh~ng H~ ph~ 6102 to.o thbnh m~1i d~lzyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAham l~ng.
t 1nh qui luo t d6 c~llg I!lfV'o t4~hl~n r'O ho'n trc:u 80' dt') pha.n b~ 8i0
2
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hall'1 l\t(/Dg u, Ti, J'e giam dtill
M\1 A:: ~nghla l~ hOom.l\.t(J'l\g cao mat t~p trl,lng tro::lg 01:.1 trh t1011
.vand.lta, tr~ m~t vD.1 trt.Wr g n9'P ngl)~i1~
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15.5
Trang 18-B~~ ll : Ii' 8~ tl.t\1'ng quan gitta cao h<fp
0.52 0~54
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1,56
Trang 19-NhU.ngzyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA10~1 (16 e8 l\lc/Ilg cG tbt JJn, g~.v dllqn &dcbaZYXWVUTSRQPONMLKJIHGFEDCBAhfiu b«t o'~trvlll
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tttl.u Xlhll tAt 011otto mlu phan t1ch d~u g~p lJiatcmoae nhltng e ~
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trung diatomes oao nhAt 18. vUDgorta sang C~ll lone va Gong Dong NRi
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lJ.t?n Sf! dt> phan' b8 oft'l ahrwg" •
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Trang 20-it,ulioa, M gl.'ttnulata la c~c- d~ng 1).lJ!;c tlg9t n~c 19'tg~Dl dUVc ch~ y~uZYXWVUTSRQPONMLKJIHGFEDCBA
d~ng h1>nhQ'pc~a bl~n V~,80Dg GiOns n~ e6 t~n 56 oft tht g~p' c ao b
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I
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158
Trang 21-~'lh\lng u&1<Jo 1,,1,zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBAt! t n." pil~n Orlll etc g10ng M:ttzeohlu navicula,
ho~ gt.!>ZYXWVUTSRQPONMLKJIHGFEDCBA b tlng nLt~o tl.'8n m~t Vtl hi~n t;JQ'ng D9.y 06 th~ ~1~1 th1ch
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nhAt th\. 'troDg 100g ~ o~ Qf> t~i Z.OOO v1J va nh;~ ms.'I!·phong ph~
eLnh vv.t nhli truD~ t1a (radiolaria) tao s11:1.o (dlatomea). dpng Vi\t
c~u 1~r.g thV1 so I;'~nb.k($t gut. ba ohuy~n d'Au, ch~3Jl thang 8/1980
1 Th&nh ph~n ~jt ch~t I
~ hai phb.J)., vo co va hiru co HamIlt9'Dg tong sO
chung,kh~ ~\n.
159
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/0. lUaU su>a b~ m~t o!ta c~c h~t rien$ ~i~t rat ee-ch, con t::'ong c~c t ~
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jp mui tron t()t ThaM 'ph~n g~tl tihach ano , fenspat •.
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t~o t \ t canxt , einh v~t pht du , ro.o.g 1.'6u ••• ngoa,l r~ con g~p cao m~
So stroh v~ han l\!qIlg va 61/ pban b8 vfJ.t 10' lVong qua chu"y~n di~u