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Ðèñ. 34. Êâàðöåâûå ïåñêè (ñëîè 1-3) âåðõíåãî âàëàíæèíà â ãëàâíîì<br />

îáíàæåíèè ïàìÿòíèêà. Íà ïåðåäíåì ïëàíå ðàñïîëîæåíû ãèãàíòñêèå<br />

êîíêðåöèè êàðáîíàòíîãî ïåñ÷àíèêà, âûïàâøèå èç ïà÷êè êâàðöåâûõ<br />

ïåñêîâ, èç êîòîðûõ ïðîèñõîäÿò îñíîâíûå íàõîäêè îêàìåíåëîñòåé, â<br />

ïåðâóþ î÷åðåäü àììîíèòîâ.  íàñòîÿùåå âðåìÿ ýòè êîíêðåöèè<br />

ïðåäñòàâëÿþò áîëüøóþ ðåäêîñòü, ïîñêîëüêó âñå îíè äàâíî èñïîëüçîâàíû<br />

äëÿ ñòðîèòåëüíûõ öåëåé. Çà êîíêðåöèÿìè âèäåí øåñò ñ íàäïèñüþ,<br />

èíôîðìèðóþùåé î òîì, ÷òî îáíàæåíèÿ ÿâëÿåòñÿ ãåîëîãè÷åñêèì<br />

ïàìÿòíèêîì ïðèðîäû. Ñíèìîê ñäåëàí â 1970-å ã.<br />

Îáúåì. 2 ïîäðàçäåëåíèÿ:<br />

ñëîè ñ Prodichotomites aristovi è ñëîè<br />

ñ Prodichotomites ivanovi è<br />

Ringnesiceras.<br />

Ðàñïðîñòðàíåíèå.<br />

ßðîñëàâñêîå Ïîâîëæüå.<br />

Õàðàêòåð çàëåãàíèÿ ñëîåâ.<br />

 íàñòîÿùåå âðåìÿ ïî÷òè<br />

îáùåïðèçíàííîé ÿâëÿåòñÿ òî÷êà<br />

çðåíèÿ, ñîãëàñíî êîòîðîé<br />

íèæíåìåëîâûå îòëîæåíèÿ íàõîäÿòñÿ<br />

â ñîñòàâå ãèãàíòñêîãî îòòîðæåíöà, ò.<br />

å. ÿâëÿþòñÿ ÷àñòüþ ïîðîä<br />

ëåäíèêîâîé ìîðåíû. Îòòîðæåíåö<br />

ïî÷òè ïîëíîñòüþ ñîñòàâëÿåò<br />

âûðàæåííóþ â ðåëüåôå ßðîñëàâñêî-<br />

Êàðàáèõñêóþ ãðÿäó,<br />

ïðîñòèðàþùóþñÿ îò ñ. Êðåñò äî ïîñ.<br />

Êàðàáèõà íà 12 êì (ïðè øèðèíå 3-5<br />

êì è âûñîòå 100 ì íàä Âîëãîé). Ýòà<br />

òî÷êà çðåíèÿ óêîðåíèëàñü ïîñëå<br />

èññëåäîâàíèé À. È. Ìîñêâèòèíà<br />

(1950) è Â. À. Íîâñêîãî (1968; 1975).<br />

Èçó÷åíèå îáíàæåíèé è äàííûõ<br />

áóðåíèÿ ïîçâîëèëî èì îïèñàòü çäåñü<br />

ò. í. ìîðåíó íàïîðà, ñîñòîÿùóþ<br />

ïðåèìóùåñòâåííî èç îáëîìêîâ<br />

ìåëîâûõ è, â ìåíüøåé ñòåïåíè,<br />

þðñêèõ ïîðîä. Ìåæäó òåì, åñòü<br />

îñíîâàíèÿ ñ÷èòàòü, ÷òî äàííûå<br />

ïðåäñòàâëåíèÿ íåäîñòàòî÷íî<br />

ïîäòâåðæäåíû ôàêòàìè è òðåáóþò<br />

ïåðåñìîòðà èëè óòî÷íåíèÿ. Ýòà ïðîáëåìà îáñòîÿòåëüíî ðàçîáðàíà<br />

â íåîïóáëèêîâàííîé äèññåðòàöèè Â. Í. Àðèñòîâà (1965), èç êîòîðîé íèæå ïðèâîäèòñÿ îòðûâîê:<br />

«Çàñëóæèâàþò ñåðü¸çíîãî âíèìàíèÿ âîïðîñû, ñâÿçàííûå ñ ïðîèñõîæäåíèåì è çàëåãàíèåì îòëîæåíèé, îáíàæàþùèõñÿ<br />

â êðåñòîâñêèõ êàðüåðàõ.<br />

À. È. Ìîñêâèòèí (1948) ïðèçíàë íåêîðåííîå ïðîèñõîæäåíèå âñêðûòûõ â êàðüåðå ñëîåâ, ïîëàãàÿ, ÷òî òîëùà<br />

þðñêèõ, ïî À. È. Ìîñêâèòèíó, îòëîæåíèé íàõîäèòñÿ â îòòîðæåíöå â ñîñòàâå ìîðåíû íàïîðà. Ìíåíèå À. È. Ìîñêâèòèíà<br />

îñíîâûâàåòñÿ íà áóðåíèè âáëèçè ìÿñîêîìáèíàòà è äðóãèõ áëèçëåæàùèõ ïóíêòîâ, à íå â ñàìîì êàðüåðå, ïîêàçàâøèì<br />

íàëè÷èå ïîä òîëùåé áåëûõ ïåñêîâ ÷åòâåðòè÷íûõ (ìîðåííûõ?) îòëîæåíèé ñ âàëóíàìè. Ê ñîæàëåíèþ, ðàçðàáîòêà áåëûõ<br />

Òàáëèöà 3. Cîïîñòàâëåíèå çîíàëüíûõ øêàë âåðõíåãî âàëàíæèíà è íèæíåãî ãîòåðèâà ñóááîðåàëüíûõ<br />

è áîðåàëüíûõ ðåãèîíîâ Áîðåàëüíîé íàäîáëàñòè.<br />

Íèæíèé<br />

ãîòåðèâ<br />

Âåðõíèé âàëàíæèí<br />

Ñ-Ç. Ãåðìàíèÿ<br />

Ïî Kemper 1978;<br />

Kemper, Jeletzky 1979<br />

Ñëîè ñ Dichotomites<br />

Ñëîè ñ Endemoceras<br />

Ñëîè ñ “Asteria”<br />

Discostella tuberculata<br />

D. bidichotomoides<br />

D. triptychoides<br />

D. crassus<br />

P. polytomus<br />

P. hollwedensis<br />

Ðóññêàÿ ïëàòôîðìà<br />

(ßðîñëàâñêîå Ïîâîëæüå)<br />

Ïðåäëàãàåìàÿ ñõåìà<br />

Pavlovites polyptichoides<br />

Prodichotomites ivanovi<br />

89<br />

Ñåâåðíàÿ Cèáèðü<br />

Ïî Áîãîìîëîâ 1989;<br />

Çàõàðîâ è äð. 1997, ñ<br />

äîïîëíåíèÿìè<br />

Homolsomites<br />

bojarkensis<br />

Àðêòè÷åñêàÿ Êàíàäà<br />

(áàññåéí Ñâåðäðóï)<br />

Ïî Kemper, Jeletzky<br />

1979<br />

Ñëîè ñ<br />

Selandites<br />

kotschetkovi<br />

Prodichotomites<br />

ivanovi è<br />

Dichotomites<br />

bidichotomoides<br />

Ringnesiceras tozeri<br />

Ringnesiceras Ringnesiceras<br />

amundseni<br />

Ñëîè ñ<br />

Prodichotomites<br />

aristovi<br />

Prodichotomites<br />

triplodiptychus Ringnesiceras<br />

pseudopolyptichum<br />

Dichotomites<br />

bidichotomus

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