Brief History and Land Formations Flashcards
MinSuPala and Its People
Mindanao is known as ______
Land of many lakes
How many sq. km. or percent is the total land area of Mindanao?
92,00 sq. km. or 34%
What resulted to the geographical development of Mindanao?
- Island has a long and irregular coastline
- Many bays and peninsulas
- Numerous volcanoes
- High peak mountain ranges
It is a period which began 135 mya, where Philippines was once parts of the Asian continent as indicated in the presence of some land mass including the paneplains of Mindanao.
Cretaceous period
___________ is a period or age where a rift separated the Philippines from Formosa or known as _____.
- End of the Cretaceous Period and towards the Middle Tertiary Period or Miocene Age
- Taiwan
What are the geological events that took place between the Miocene age?
There was intense volcanism which resulted in more mountain-building and pushing of new lands. Mindanao was believed to be the product of this event.
It is a period or age where Mindanao has five distinct islands: _____, ______, ______. ______, and _______.
- late Piocene and early Pleistocene period or Ice Glacial Age.
- Zamboanga Peninsula, Agusan Valley, land south of Cotabato River, land near Lake Lanao, land between Agusan Valley and Bukidnon
What are the two distinct land connections
Palawan- -Borneo land brindge and Sulu-Mindanao-Borneo linkage
What certain fauna present in different regions as land bridged were permitted?
Stegedon and Elephas (Elephants)
Mindanao is the second-largest island in the Philippines and has the greatest _________ development
Physiographic
How many mountain ranges does Mindanao can be conveniently grouped?
Five (5)
The group of mountain ranges includes both the ______ and _________
Complex structural mountains and volcanoes
The structural mountains on the extreme eastern and western portion of the island show broad exposures of _________ rock with ____________ rock at the surface
Mesozoic rock with Ultra-basic rocks
From Bilas Point in Siargao del Norte to Cape Agustin in Southern Davao, is a range of complex mountains known in their northern portion called ___________
Diwata Mountains
This range is low and rolling in its central portion, reaching a maximum elevation of only 450 meters.
Diwata Mountains
The Diwata Mountains, north of these low portion, are considerably higher and more rugged, reaching an elevation of 2,012 meters in ____________, 17 miles northeast of _____________.
Mount Hilonghilong
Butuan City
The series of small coastal lowlands of east-facing coastal regions of ________ and ________ separated others one from the other by rugged forelands that extend to the water’s edge.
Davao and Surigao del Sur
________ are numerous coral reefs and tiny islets
Off-shores
A few miles off-shore is found the Mindanao or ________
Philippine Deep
A second north-south range extends along the western boarders of ______ and _____ from ________ in the north to _______ in the south.
Agusan and Davao
Camiguin Island to Tinaca point
An ocean trench, reaching measured depths of 35,400 ft., marks one of the greatest depths known on the earth’s surface
Philippine Deep
This range is mainly structural in origin, but it also contains at least three active volcanoes
North-South Range
West of the city of Davao has two active volcanoes:
Mount Talomo (2,693 meters)
Mount Apo (A range 2,954 meters)
A range in western Mindanao which has aa complex structural mountains forms the long, handle like ________
Zamboanga-Peninsula (1,200 meters)
There are several places in the Zamboanga Mountains where ________ have been created with some potential for future agricultural development
Intermountain basins
A series of volcanic mountains are found in ______ in a broad arc through ___________, ___________, and __________.
Lake Lanao
Lanao del Sur, northern Cotabato, western Bukidnon provinces.
There are 20-odd peaks in this area, how many are active?
Six (6)
A peak with four crater lakes, easily seen from Cotabato
Butig Peak
An active cone reaching 2,815 meters, is the MOST ISOLATED
Mount Ragang
A mountain that has the greatest height in Bukidnon at 2,896 meters
Mount Kitanglad
In South Cotabato, another range of volcanic mountains found, this time _________ the coast
Paralleling the coast
It is a mountain that has an almost circular crater lakes measures a mile and a quarter in diameter and lies 300 meters below its 2,040-meter summit.
Mount Parker
A second important physiographic division of Mindanao is the series of upland plateaus in _______ and ________ provinces
Bukidnon and Lanao del Sur provinces
It is composed of basaltic lava flows interbedded with ash and volcanic tuff. Deep canyons near their edges cut it, and spectacular waterfalls drop to the narrow of the coast plain at several points.
A plateau
This falls hold considerable promise for the development of “hydroelectric energy”
Maria Cristina Falls
It occupies the major portion of one such plateau area in Lanao del Sur
Lake Lanao
It is the largest lake in Mindanao and ranked second in the entire country is roughly triangular in shape with an ___-mile long base.
Lake Lanao
18-mile long base
A city in the northern tip of the lake, bisected by the _________ river which feeds the Maria Cristina Falls
Marawi City
Agusan River
Falls that present one of the nation’s scenic wonders at the gateway to a LANDFORMS
Jose Abad Santos Falls at Malabang
Mindanao contains two large inland lowland areas
The valleys of the Agusan in Agusan are and Mindanao Rivers in Cotabato Provinces
It occupies a broad syncline between the central mountains and the east coast mountains. This valley measure 110 miles from south to north and varies from 20 to 20 miles in width
Agusan Valley
35 miles north of the head of DAVAO GULF, lies ahead a watershed between the AGUSAN and the tributaries of the _____________ which flow to the Gulf
Libuganon River
The Mindanao River has its main tributaries, what are these?
The Catisan and Pulangi
The Southern extension of the Cotabato Valley extends uninterrupted across a 350-meter watershed from ______________ on the northwest to ___________ on the southeast
Illana Bay
Sarangani Bay
One of the lowlands of the coastal nature of Mindanao that has tiny, isolated pockets.
The northwest coastline of Zamboanga
In other areas, the coastal lowlands are as much as ten miles wide and several times length
Davao Plain
From _____ to ________ extends a rolling coastal plain of varying width.
Butuan City to Misamis OCcidental
Dormant Mountain that created a lowland averaging 8 miles in width
Mt. Malindang
Shallow _____ divides the province from Lanao del Norte and is bordered by low-lying, poorly-drained lowlands, and extensive mangroves
Panguil Bay
A place where the plain is narrower and in places almost pinched out by rugged forelands which are rich to the sea
Misamis Oriental
A mountain that runs a few miles off the tip of this lowland-rimmed protection lies the land of Camiguin. The most recent violent eruption occured in 1951
Mt. Hibok-Hibok
Immediately south of ZAMBOANGA PENINSULA lies ______. South of it lies _________ that extends 200 miles
Basilan Island
Sulu
